Critical Reasoning

[Nagm]

This is from LSAT
From a book review: The authors blithely claim that there are "three basic ways to store energy: as heat, as electricity or as kinetic energy." However, I cannot call to mind any affective ways to store energy as electricity, whereas any capable student of physics could readily suggest a few more ways to store energy: chemical, gravitational, nuclear.
The reviewer makes which one of the following criticisms of a claim that appears in the book under review?
(A) There is no reason to consider any particular way to store energy any more basic than any other.
(B) The list given of ways to store energy is possibly inaccurate and certainly not exhaustive.
(C) It is overly limiting to treat basic ways to store energy as a question unrelated to the question of effective ways to use energy.
(D) What needs to be considered is not whether various ways to store energy are basic but whether they are effective.
(E) Except possibly for electricity, all ways to store energy are equally effective and therefore equally basic.
Any idea about the answer

[sanj]

This is from LSAT
From a book review: The authors blithely claim that there are "three basic ways to store energy: as heat, as electricity or as kinetic energy." However, I cannot call to mind any affective ways to store energy as electricity, whereas any capable student of physics could readily suggest a few more ways to store energy: chemical, gravitational, nuclear.
The reviewer makes which one of the following criticisms of a claim that appears in the book under review?
(A) There is no reason to consider any particular way to store energy any more basic than any other.
(B) The list given of ways to store energy is possibly inaccurate and certainly not exhaustive.
(C) It is overly limiting to treat basic ways to store energy as a question unrelated to the question of effective ways to use energy.
(D) What needs to be considered is not whether various ways to store energy are basic but whether they are effective.
(E) Except possibly for electricity, all ways to store energy are equally effective and therefore equally basic.
Any idea about the answer

i m between B n D. in B inaccurate seems to be extreme word. I will go for D

[joshcurby]

even i ll go for "D"
as its makin a genral assumption rather than not stucking to any specific point as it does in "B".

[nagm]

OA is B.
Now I can see why

[RonPurewal]

thing number one: do not use lsat problems until you have COMPLETELY exhausted the available pool of official gmat critical reasoning questions (og11, verbal supplement, gmatprep, and possibly og10. note that most of the og10 problems are in either og11 or the verbal supplement, but there are a few that aren't, and you can get used og10's dirt cheap on amazon).

with that said,

this problem is basically asking you to paraphrase the speaker's argument. my first instinct is to tell you that this problem has zero illustrative value, because it is of a type that doesn't appear on the gmat. nevertheless, there is certainly no harm in analyzing it, so, what the hey.

if you are asked to PARAPHRASE something, the best thing to do is put that something into your own words - BEFORE you take a peek at the answer choices.
to wit:

However, I cannot call to mind any affective ways to store energy as electricity,

this means: electricity may be wrong. speaker is not 100% sure, though.

whereas any capable student of physics could readily suggest a few more ways to store energy: chemical, gravitational, nuclear.

this means: there are DEFINITELY items missing from the list. of this the speaker is 100% sure.

(A) There is no reason to consider any particular way to store energy any more basic than any other.
(B) The list given of ways to store energy is possibly inaccurate and certainly not exhaustive.
(C) It is overly limiting to treat basic ways to store energy as a question unrelated to the question of effective ways to use energy.
(D) What needs to be considered is not whether various ways to store energy are basic but whether they are effective.
(E) Except possibly for electricity, all ways to store energy are equally effective and therefore equally basic.

choice b is an exact summary of what has been said.

choice (d) misses the mark. two things about that one:
1) no, the speaker is still principally considering which items belong in a list of basic forms of energy storage. he mentions 'effectiveness' in his words, but this is not his main point. his main point is that he doesn't think electricity has any good reason to be in the list.
2) MUCH MORE IMPORTANTLY, if you paraphrase the statements IN YOUR OWN WORDS before you look at the choices, you will not come up with anything even remotely close to the content of choice (d).