GMAT Reading Comprehension (RC) | Re: Social learning in animals is said to occur when direct or

Hi,

I am sorry to disturb you with this so commented yet text but I need to throw the light on a specific problem with the QUESTION 2 :

The answer E is clearly stated on the text and each member of the discussion seems agree on this answer, but OA is D.

Now my question : What is wrong with E, and what makes D correct ?

Thank you in advance for your kind help,
Nicolas

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