Which of the Following Explains Why Many People Never Seek

Which of the following explains why many people never seek treatment for phobias?

A) the frequent use of exposure therapy
B) Even the simplest of phobias requires participation in many lengthy treatment sessions before any progress is seen.
C) Most individuals who have a phobia have agoraphobia or claustrophobia, leaving them less likely to venture out in public and making the use of many modes of transportation difficult.
D) the high likelihood that the individual with a phobia believes that their fear is rational