what does "Many" mean in CR answer choices

[raviram1980]

Which of the following most logically completes the argument?

1.The growing popularity of computer-based activities was widely predicted to result in a corresponding decline in television viewing. Recent studies have found that, in the United States, people who own computers watch, on average, significantly less television than people who do not own computers. In itself, however, this finding does very little to show that computer use tends to reduce television viewing time, since __________.

A. many people who watch little or no television do not own a computer
B. even though most computer owners in the United States watch significantly less television than the national average, some computer owners watch far more television than the national average
C. computer owners in the United States predominantly belong to demographic groups that have long been known to spend less time watching television than the population as a whole does
D. many computer owners in the United States have enough leisure time that spending significant amounts of time on the computer still leaves ample time for watching television
E. many people use their computers primarily for tasks such as correspondence that can be done more rapidly on the computer, and doing so leaves more leisure time for watching television

The answer in this one is C, but I have question regarding choices A,D and E

What does "many" mean here? How big a set is "many" with respect to CR in general and this question in particular if it is different from general CR definition

Is there a general way to treat choices that have many?

When can these choices be right?

Please clear up this confusion.

Thanks

[krishnan.anju1987]

I am not sure this is what you were asking for but in my opinion the problem is not with many or the size group that many signifies. A,D,E would have been right. Logic dictates that to show that computer usage does not reduce television viewing we must show an absence of relation between both and C is the only option that does that.

[raviram1980]

I know the logic behind choosing C but for my knowledge

I wanted to understand how to interpret Many when present in answer choices or the passage itself in general.

[tim]

"many" is the GMAT's way of taking a totally indeterminate number and trying to trick people into thinking it has some further significance. :) all you can say for sure is that "many" means "more than 1". it definitely does not automatically mean "more than 50%" or any other quantifiable amount..

"most", on the other hand, DOES imply "more than 50%"..