by ohthatpatrick Thu Apr 10, 2014 2:31 pm
Let’s put up a complete explanation
Question type: Principle Support
===== Argument core =======
Conc: You shouldn’t have your electric car
(why?)
Prem: The company that made your electric car also makes millions of heavily polluting gas-powered vehicles, so your patronage of the company benefits a producer of a product you don’t like.
=========================
What idea do we need to get us from the Premise to the Conclusion? This guy seems to think that if a company makes any product you don’t like, then it’s wrong to buy any of the company’s other products.
For example,
If Apple makes land mines that I object to, then I shouldn’t buy an iPod.
So we need something like:
if a company makes a product you don’t like, you shouldn’t patronize that company by buying another one of the company’s products.
The extremely lovable thing about Principle Support questions is that correct answers are almost always 1/2 premise, 1/2 conclusion (i.e. we should be able to match up some of the language in the answer to the premise, and some of the language to the conclusion).
(A) "an action can be wrong" matches up somewhat with the Conclusion: "˜you should not have your electric car’. But does "fewer negative consequences" match up with anything said in the Premise? No. Be vigilant! You don’t have to tell yourself a story like, "owning an electric car probably has fewer negative consequences than owning a gas powered car". The correct answer will much more explicitly match what was said.
(B) This conditional rule says
Should purchase "”> pollutes less than any competing product
The contrapositive would allow us to prove "should NOT purchase", so we should check it out.
Doesn’t pollute less than any competing product "”> should not purchase
The 2nd half beautifully matches our conclusion ... "you should not purchase the electric car".
Can we match up the 1st half?
Were we told in the premise that "electric cars DON’T pollute less than any competing product"?
No, we were told the opposite. Electric cars DO pollute less than gas powered cars.
(C) This conditional says
Product has no negative consequences "”> you should purchase it.
This rule is useless to us. We’re trying to prove a conclusion that "you should NOT purchase it".
This rule will never allow us to get "you should NOT purchase it" on the right hand side.
correct answer: (D) This conditional says
An organization does anything you believe to be wrong "”> you should not support it.
The conclusion is close enough to match up with "you should not have your electric car". We’ve already established that buying an electric car is patronizing (i.e. "˜supporting’) the company that makes gas-powered vehicles.
Does the 1st half of the conditional match the premise? Is the company who makes your electric car "an organization that does something you believe to be wrong"? Yes. It is a "˜producer of products to which you object’. This also basically matches our pre-phrase of "if a company makes any product you find objectionable, you shouldn’t buy other products from that company". Choice (D) is actually stronger than what we were looking for, but there’s no such thing as "˜too strong’ when a question asks you "which of the following, if true, ..."
(E) This conditional says
A company makes no environmentally sound products "”> shouldn’t buy products from it.
The 2nd half works again, but the 1st half fails to match. We know the company in the stimulus makes electric cars, which are presumably environmentally sound. Even if we argued that electric cars are not environmentally sound, we still have no text to justify that we KNOW that this company makes NO environmentally sound products.
Hope this helps.