What Is the Main Difference Between Obsessive Compulsive Disorder OCD)

What is the main difference between Obsessive Compulsive Disorder OCD) and Obsessive Compulsive Personality Disorder OCPD) ?

A) People with OCPD don't have true obsessions or compulsions like people with OCD have.
B) People with OCD can do a compulsion once and feel better, people with OCPD never feel better no matter how many times they do them.
C) People with OCPD are less conscientious about their rituals than people with OCD.
D) People with OCD are more perfectionistic than people with OCPD.