Answer:
a. Highly cohesive group of 2 to 12 peers
Explanation:
Adolescent cliques -
It is the cliques which occurs during the age of adolescents .
Clique is refers to the describe the age group from 2 to 12 years . As the children who interact with each other more regularly and intensely .
Hence , the correct option about adolescent "clique" is that , they are the highly cohesive group of peers with age group of 2 to 12 years .