During the first step of a group discussion, A) one student asks the group a question. B) one student shares facts and opinions. C) the teacher introduces the topic. D) other students listen to the answer.

C: The teacher introduces the topic.

I believe this answer to be correct because:

A) The group question cannot be asked without a topic

B) The facts cannot be shared without the topic.

D) The answer cannot be given without a topic.