Which of the following is an example of reinforcing appropriate behavior?

Reinforcing appropriate behavior involves acknowledging and positively supporting actions that are desirable within a given context. The correct choice, which focuses on reinforcing polite communication, aligns perfectly with this concept. When a student exhibits polite communication, recognizing and reinforcing that behavior encourages them to continue engaging in respectful dialogue. This reinforcement serves to strengthen the likelihood that the student will repeat such behavior in the future, contributing to a more positive and effective communication environment.

In contrast, encouraging a student to talk loudly does not promote desirable behavior, as it may lead to disruptions or disrespectful interactions. Ignoring disruptive actions fails to provide guidance or reinforcement, which can lead to the behavior persisting or worsening. Punishing incorrect answers focuses on negative consequences rather than encouraging and reinforcing the positive behaviors that are more effective in a learning environment.