Answer :
The correct answer is C. Determining how to improve meals at the school cafeteria
Explanation:
A discussion is a type of communicative situation in which two or more participants share their points of view and perspective about a common topic, because of this, groups discussion imply the participation of everyone in the group and are more suitable for sharing opposites points of view, creating proposals, solving a problem or making decisions rather than telling a story or announcing something. considering this, the one that is more suitable for a group discussion is "Determining how to improve meals at the school cafeteria " because this implies everyone participating and sharing different points of view to get to a common proposal or agreement which is the main point in group discussions.
C. determining how to improve meals at the school cafeteria is correct