Why does a peer group have a strong influence on a person's opinions?

A.) Group members have developed a special trust.

B.) Group members root for the same sports team.

C.) Group members have the same ethnic background.

D.) Group members question one another's beliefs.

I would say "D" because what does sports, ethnic and trust have to do with someone opinion."D" is the best answer

The answer is A. A peer group has a strong influence on a person's opinions because group members have developed a special trust.

Explanation:

According to development theories in psychology, peer members are a part of what is called "secondary socialization". The child's family is the primary socialization group, but, such as the role the family plays in socialization, the child also looks for references in a peer group when growing up.

Group members develop a special trust in each other and search for identitary references within each other, that is why a group has a strong influence on a person's opinions.