Which of the Following Statements Is True of Phobias

Which of the following statements is true of phobias?

A) They usually involve fears of out-of -the-ordinary things.
B) Phobic individuals do not usually recognize that their fears are excessive or unreasonable.
C) Different types of phobias usually appear at different ages.
D) Phobic individuals experience fear typical proportional to the actual threat posed ? by what they fear.