Which of the Following Statements About an Adolescent's Peer Relationships

Which of the following statements about an adolescent's peer relationships is true?

A) Both young men and women who have a more positive relationship with their mother later have more positive intimate relationships with others.
B) Military service tends to reduce the ability to form intimate relationships.
C) Gay young men tend to have more male than female friends.
D) Girls can effectively use direct aggression to exclude other girls from their social circle.