For Any Treatment Group, the Leader Should Do All of the Following

For any treatment group, the leader should do all of the following except

A) study the literature on the causes of problems that members are experiencing.
B) examine the most effective intervention strategies for these programs.
C) remember that experienced group leaders can rely on past experience instead of preparation.
D) know the expectations as to the length of time the intervention strategies need to be applied to induce positive changes.