Tony Has Thoughts About Hating His Rich Uncle and Wishing

Tony has thoughts about hating his rich uncle and wishing he would somehow become a pauper. He becomes very anxious about these thoughts because he has developed the idea that if anything really happened to his uncle's money, it would be his fault. For no explainable reason, Tony starts mentally counting by odd numbers each time he walks past his uncle's house and discovers that this activity makes him less anxious. Tony's behavior can be described as

A) a social phobia based on his fear of rich people.
B) a mental compulsion developed to neutralize his bad thoughts.
C) an attempt to be better in math than his brother to gain parental acceptance.
D) a compulsive ritual designed to make him like his brother more.