Answer:
B. Synthesizing claims and evidence.
Step-by-step explanation:
If the members of the discussion group each have an idea that they want to defend, this means that they all have different claims. If, moreover, they are going to put these claims together, this means that they will be synthesizing them. Synthesizing claims refers to putting individual ideas and opinions together into a single statement that represents all of them. This is a very important step in group discussions.