Which of the following behaviors is considered an example of bullying?

The behavior exemplified in the chosen response clearly illustrates bullying due to its repeated and intentional nature aimed at causing emotional harm to another student. In this case, the student sending mean messages is targeting a classmate, which establishes a pattern of aggressive behavior. This aligns with the common definitions of bullying, which typically include repeated acts of aggression, a power imbalance, and the intent to hurt or intimidate.

Understanding this context is key in identifying bullying, as it emphasizes the importance of the intent and repetition of such actions. In contrast, the other options reflect positive or neutral interactions among students. Helping classmates, complimenting others, and being friendly during group activities are behaviors that foster a supportive environment and promote collaboration and respect among peers. This distinction highlights the critical differences between positive social behavior and actions that create harm or distress for others.