Studies Attempting to Test for Innate ("Inborn") Gender Differences Have

Multiple Choice

Studies attempting to test for innate ("inborn") gender differences have found that

A) boy babies are more independent since they cry less when separated from their care-takers.
B) boy babies appear to be more aggressive than girl babies because they learn to walk sooner.
C) boy babies smile as frequently as girl babies.
D) the relatively smaller size of girl babies may predispose them to higher rates of crying than boy babies.
E) none of the above.