What is the role of the leader in a group discussion? А.
to introduce information for the group to discuss
B
to help resolve conflicts during group discussions
с.
to take notes on the main points of discussion
D. to track the time spent on the group discussion

A is the closest answer, My answer would be: Make sure everyone is focused and heard or included.

Explanation:

A. To introduce information for the group to discuss? Yes, This is very important, you are now firstly, getting everyone on track on what to do, and second, make sure to have everyone included

B. To help resolve conflicts during group discussions? Important but not really.

C. To take notes on the main points of discussion? again, Important but not really.

D. to track the time spent on the group discussion? That sounds like a minor job that a leader shouldn't do.