Adopting a Not-Knowing Position as a Counselor

Adopting a not-knowing position as a counselor:

A) is never a good idea since it lessens one's credibility.
B) leads counselors to make assumptions.
C) makes it all right for us to not understand everything, and helps us realize that the expert in the room is the client.
D) demonstrates a lack of intelligence and interest.
E) both a and d