A Patient Describes Feeling an Unreasonable,irrational Fear of Snakes

A patient describes feeling an unreasonable,irrational fear of snakes.His fear is so persistent that he can no longer comfortably look at even pictures of snakes and has made an effort to identify all the places he might encounter a snake and avoids them.The nurse recognizes that he:

A) Has a snake phobia.
B) Is a hypochondriac; snakes are usually harmless.
C) Has an obsession with snakes.
D) Has a delusion that snakes are harmful, which must stem from an early traumatic incident involving snakes.