Findings That Some Girls' Friendships Are Full of Jealousy and That

Multiple Choice

Findings that some girls' friendships are full of jealousy and that some boys' friendships often involve physical attacks suggest that

A) prosocial children are as much at risk of having hostile, fragile relationships as aggressive children.
B) friendships in middle childhood are seldom considered to be stable.
C) aggressive children's social problems operate even within their closest peer ties.
D) school-age children are still largely incapable of behaving prosocially.