Monarch butterflies must contend with single-celled parasites that can cause deformities that interfere with their fl...

Colleen on May 16 at 04:02PM

Choice C

I understand why D is correct, however I thought that C would also be correct because the stimulus is talking about percentages not numbers. I’m confused as to why C cannot be correct?

1 Reply

on May 16 at 08:00PM

Hello @colleen_,

You are correct that the stimulus deals with percentages, and that is exactly why C is not the flaw in the argument. We don't care about the relative size of these groups, because the rates/percentages are the only premises given in the argument. The author's conclusion is based on these percentages, so a change in the absolute population of either group would not affect the argument.