The correct answer is C. Prepare to listen and speak
Step-by-step explanation:
A group discussion is a type of discussion in which there are multiple participants sharing and discussing ideas, opinions, positions about some topic or situation, this implies a communicative exchange in which each participant is able to share what they think or know, but also listen to others. Because of this for a group discussion to be fruitful and effective all the participants need to have a good attitude for sharing their opinion and perspective, but also for listening others and interacting with them including having eye contact as this will guarantee the communication flows and the objective of the group discussion is achieved. Additionally, the information exchange is not limited to only one type as group discussions can include sharing opinions, facts, artistic works, plans and other. Thus, in a group discussion, effective participants should prepare to listen and speak.