Gillian Often Has Thoughts About Hurting Her Child

Gillian often has thoughts about hurting her child.After she has such a terrible thought,she washes her hands over and over.According to cognitive-behavioural theorists,Gillian washes her hands because ___.

A) it help to resolve the unconscious conflicts she is experiencing
B) it increases serotonin levels, offsetting the anxiety
C) it neutralizes and makes amends for the thoughts, thereby reducing her anxiety
D) it extinguishes the association between the thoughts and anxiety created by classical conditioning