With no explanation, chose the best option from "A" or "B". Mr. Anderson is teaching a Geometry class when some students in the back began having a side conversation. Mr. Anderson wants to respond to the misbehavior.

A: Mr. Anderson quietly asks the whole class to please listen to the lesson and then goes back to writing on the board.
B: Mr. Anderson walks to the back of the room near the students and firmly asks them to stop talking.
B.