Which behavior is likely to contribute to expulsion?

Engaging in illegal activities is a behavior that can lead to expulsion from school. Educational institutions have a responsibility to maintain a safe and conducive learning environment for all students. When a student is involved in activities against the law, such as drug use, theft, or violence, it poses a threat not only to their own safety but also to the safety of other students and staff. Schools must take disciplinary actions to uphold their policies and legal obligations, which can include suspension or expulsion depending on the severity and nature of the illegal activity.

In contrast, attending classes regularly, participating in sports, and completing assignments on time are positive behaviors that are encouraged in an educational setting. These actions demonstrate a student's commitment to their education and engagement with the school community, which are not grounds for expulsion.