Final answer:
Michael's behaviors such as aggression, bullying, and early alcohol use are typically associated with early sexual activity, largely seen in individuals who experience early-onset puberty.
Step-by-step explanation:
The risk factors you've mentioned, including Michael's history of aggressive and disruptive behavior, bullying, poor academic performance, and early alcohol use are typically associated with c. early sexual activity. These behaviors can be seen as signs of underlying psychological and social problems and are often linked to early-onset puberty. Boys who mature earlier can sometimes exhibit signs of aggression and are at a higher risk of engaging in risky behaviors, including early sexual activity, substance abuse, and bullying.