How Do Boys' and Girls' Friendships Differ

How do boys' and girls' friendships differ?

A) Boys are more likely than girls to go through a series of "best friends."
B) Boys' friendship networks tend to be smaller than girls' friendship networks.
C) Girls are more likely than boys to share their "best friend" with someone else.
D) Girls' "best friend" relationships are more exclusive than boys' "best friend" relationships.
E) Girls who have a "best friend" are more likely than boys with a "best friend" to respond to a friendship offer from someone else.