The answer is E.
We can solve this question using the
The argument presents a general conclusion (studies of all birds suggest tail-feathers, good for diving and bad for flying) and an exception (soaring birds - back, good for flying, bad for diving).
Therefore, the reason for the exception must be some fundamental difference between the soaring birds and the many studies about birds in general - a difference
...
We can solve this question using the
Logical
approach, as it all about understanding the logic of the comparison being made.The argument presents a general conclusion (studies of all birds suggest tail-feathers, good for diving and bad for flying) and an exception (soaring birds - back, good for flying, bad for diving).
Therefore, the reason for the exception must be some fundamental difference between the soaring birds and the many studies about birds in general - a difference
...


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