A teacher introducing themselves on the first day should establish a welcoming start to the class.
Why B fits: A brief, clear introduction helps students know who will teach them and begins a respectful relationship.
Why the others are weaker: Asking for an immediate class meeting, ignoring students’ request, or scolding them creates an unnecessary barrier.
Practical point: The teacher can share their name, subject, learning expectations, and how students may ask questions, then invite students to introduce themselves in a suitable way.