Explanation
To maintain discipline in the class, the teacher should primarily B) Behave reasonably.
It is important for teachers to model appropriate behavior and treat students with respect. By behaving reasonably, the teacher sets a positive example for the students and encourages them to follow suit. It involves being fair, consistent, and considerate in interactions with students. Additionally, the teacher should establish clear expectations and rules regarding behavior and classroom conduct, ensuring that students are aware of the boundaries and consequences. Over-controlling the students or seeking permission for teaching may not be necessary in maintaining discipline. However, it is valuable for the teacher to know the views of the students and create a supportive and inclusive learning environment.