Family, school, and the media are all:

The correct answer is C. agents.

Family, school, and the media are often referred to as “agents of socialization.” This means they play a key role in shaping our values, beliefs, behaviors, and social skills as we grow up. Each of these agents influences how we interact with others and understand the world around us. If you have more questions or need deeper explanations on this topic, feel free to ask!