Which Statement Is True of the Relationship Between Obsessive-Compulsive Disorder

Which statement is true of the relationship between obsessive-compulsive disorder and obsessive-compulsive personality disorder?

A) Researchers have not found a specific link between the two disorders.
B) People with obsessive-compulsive anxiety disorder usually develop obsessive-compulsive personality disorder within 3 years.
C) In order to be diagnosed with obsessive-compulsive personality disorder, there must be a history of suffering from obsessive-compulsive anxiety disorder at some point in the person's life.
D) Researchers have found that both disorders are related to a decrease in the neurotransmitter GABA in the prefrontal cortex of the brain.