Final answer:
The family is best suited for helping adolescents with academic achievement, as strong family relationships correlate with positive educational outcomes(option b).
Step-by-step explanation:
In contrast to the role of the peer group in adolescent development, the family is best suited for helping the adolescent with regard to option b)academic achievement.
Peer groups are important as they provide adolescents with opportunities for socialization and help them form their identity and exert independence. However, warm and healthy parent-child relationships have been associated with positive outcomes such as better grades and fewer school behavior problems. Family influence is paramount in areas such as academic support and the nurturing of educational ambitions, which far extends the scope of peer socialization.