I had the same problem as asafezrati did, I thought the conclusion was the second sentence because isn't "clearly" a conclusion indicator? I'm looking at it, and in the third sentence the "can only" is very strong and now makes me understand it as the conclusion, but when reading...

I'm wondering if I attacked this problem wrong. I got the right answer, but when I did it I immediately eliminated answers A, C, and D because of the difference in wording from the stimulus. How it's "as a scientist, she knows that no scientist" compared to "as an expert in biology, h...