In Middle Childhood, __________ Become(s) Very Important for Friendships and __________

In middle childhood, __________ become(s) very important for friendships and __________ is/are cited as one of the main reasons for ending a friendship.

A) shared activities; differences in interests
B) shared interests; moving away from the neighborhood
C) trust; a betrayal of trust
D) a sense of belonging; fighting or bickering over a member of the opposite sex