We learn from the functional perspective that:

Question $2$Answer

a$.$

An effective group will identify missing task and relational functions so members can fill them.

b$.$

Group members should be sure to fill all three types of roles: task, relational, and dysfunctional.

c$.$

As long as one or two roles are filled, the group will function fine.

d$.$

The more people that fill a particular functional role, the better.