by ohthatpatrick Thu Dec 05, 2013 11:27 pm
Yeah, I think you pretty much nailed (B). The sincerity of their belief is something we don't know or care about. The conclusion is not about their sincerity; it's saying "don't worry about middle-class lifestyles doing ecological damage".
Here's the whole question rundown:
Conc:
Don't worry about the ecological damage resulting from the lifestyles of middle-class families in wealthy nations.
(why? because ... )
Prem:
The people who tell you to worry about it are often movie stars and celebrities ... and THEIR lifestyles would do even MORE ecological damage, if widely adopted.
If you're having trouble spotting the flaw, consider this:
"My friend Bob told me back in 1990 to invest in Apple stock. I was smart to ignore his advice. After all, BOB wasn't investing in Apple stock."
Well, congratulations, dummy, you missed out on making a fortune. Just because someone doesn't follow their own advice doesn't mean it's bad advice.
Similarly, it's an illegal logical move to reject the validity of a claim by saying that the person who said it
- is a hypocrite
- has an ulterior motive
- would stand to gain from the claim being true
Sure, those things can raise a suspicious eyebrow, but you can't shoot down an argument by saying nasty things about the person who said it ... you have to attack their supporting ideas.
Another flawed part of this argument that doesn't get addressed in any of the answer choices is that the author says that the warning about ecological damage OFTEN comes from movie stars / celebs, which he considers an untrustworthy source. Okay, but who ELSE is issuing the warning about ecological damage? Maybe some of the other sources of this criticism are very reputable!
(A) is correct. The author DOES criticize the lifestyle of the movie stars and celebrities who often make the argument that 'middle class lifestyles can do ecological damage'. The author doesn't present any premise that undermines the validity of the argument.
(B) If the author had said, "the celebrities and movie stars have ecologically damaging lifestyles, therefore, they must not really mean what they say" then this answer would be accurate. Instead the author said, "therefore, we shouldn't take the criticism about middle-class lifestyles seriously". Remember, the conclusion is not just addressing movie-stars/celebs. It's shooting down an entire claim about the ecological damage of middle class lifestyles, no matter WHO says it.
(C) We can't match up the 2nd half of this answer choice. The viewpoint we're discussing is that 'middle class lifestyles cause ecological damage'. What grounds were advanced to support it?
There were none. This answer choice is saying that some reason(s) was given to support the idea that 'middle class lifestyles cause ecological damage' but the author found that supporting idea insufficient. Since there were no supporting ideas mentioned, we can't match this answer to anything in the argument.
(D) The evidence advanced in support of the author's conclusion is that movie stars / celebs have ecologically damaging lifestyles. Does that weaken the idea that "middle-class people have ecologically damaging lifestyles"? No. They could BOTH have ecologically damaging lifestyles.
(E) The author never generalizes about ALL people.