Final answer:
John's Boy Scout troop hosting a presentation on careers exemplifies community-level socialization, exposing members to broader societal roles and expectations.
Step-by-step explanation:
John's Boy Scout troop inviting neighbors to give a presentation about different occupational choices is a community level example of socialization. This is because it extends beyond the immediate family and school, involving a broader interaction with members of the local community. At this level, individuals are exposed to a variety of roles and expectations that are present in the wider society, which helps them to understand and navigate diverse social and professional environments.