Regarding Gender Differences in Childrearing Practices,what Has Recent Research Demonstrated

Regarding gender differences in childrearing practices,what has recent research demonstrated?

A) That most parents try to teach boys compliance early to curb their aggression.
B) That infants' "startle" responses are interpreted as either anger (in boys) or fear (in girls) .
C) That girls are encouraged to play more competitively today and are rewarded for this behaviour.
D) That boys are encouraged to engage in role-playing games but are punished for games that seem too feminine.