Marita has a tremendous fear of baseball caps. she is not afraid of any other kind of hat, and in fact she wears stylish hats on a regular basis. when she is near a person wearing a baseball cap, however, she gets very upset and has to move away from him. she cannot explain why this fear exists, and recognizes it to be irrational. marita has had relationships end because of this fear in the past. what would be the best diagnosis for marita's fear?