Answer:
C is the answer!
Step-by-step explanation:
Positive peer pressure is all about people encouraging you to do something that's good for you, and joining the chess club definitely falls into that category. His friends are encouraging him to join an extracurricular activity that will stimulate his mind, teach him new skills, and help him build relationships with others. Vaping at a party - definitely not positive peer pressure. Building a home gym - nice, but not necessarily peer pressure. Assigning homework - that's more of a teacher thing. So, C is the correct answer! Positive peer pressure for the win!