Gemma outlined the following plot: A man named Josh had a gambling addiction that led him to lose all his money. His young son became sick and needed expensive surgery, so Josh robbed a bank. He carried out the perfect crime, but when his wife found out how he got the money, she left him and took their son with her. Based on Gemma’s outline, what is Josh’s defect?

A. his robbery of the bank
B. his desire to fund his son’s surgery
C. his gambling addiction
D. his relationship with his wife