GMAT Critical Reasoning (CR) | Re: Scientists typically do their most creative work before the

This is a bold face argument type so your first task is to find the conclusion and premise.

the conclusion of the argument is "the real reason why scientists over forty.. is that they have spent too long in their field.:

This is supported by the fact that the scientists who are creative over forty have spent less time in the field.

therefore the second bold phrase is the author's conclusion and the first bolded phrase is the premise (or reason given for the conclusion)

then you look