Is It Important for a Counselor to Question Him or Herself

Is it important for a counselor to question him or herself as much, if not more, than he or she questions other counselors?

A) No, if a counselor begins to question him or herself, this doubt will eventually become apparent to the client.
B) No, a counselor should always question his peers and take steps to correct them.
C) Yes, questioning one's self is positive and productive, and will challenge the counselor to explore new avenues.
D) None of the above.