Answer:
C. the teacher introduces the topic.
Step-by-step explanation:
A group discussion can be defined as a form of communication in which a group of people meet face-to-face (one on one) to exchange ideas, interact, and share opinions on a common topic or subject matter.
Generally, group discussions comprises of members and a leader who is saddled with the responsibility of presenting the topic, stating the facts and overall coordination of the discussion. Also, the various members involved in the group discussion are able to connect what they see, hear and how everyone responds to each other.
During the first step of a group discussion, the teacher introduces the topic. The topic to be discussed in group should first of all be introduced by the teacher to the discussants (students) so as to enable them have an idea or understanding of what the conversation would be about.
Additionally, none of the group members should be silenced or restricted from sharing their opinions, ideas or feelings about the subject matter (topic being discussed). This would go a long way to stimulate and promote collaborative conversation as many members would share their opinions and ideas freely.