Which of the following statements is true?

A) There is no appreciable difference between obsessive-compulsive disorder and obsessive-compulsive personality disorder.
B) People with OCD experience obsessions and compulsions as intrusive and unwanted; by contrast, people with obsessive-compulsive personality disorder typically view their concerns as part of their personalities.
C) People with obsessive-compulsive personality disorder experience obsessions and compulsions as intrusive and unwanted whereas people with OCD typically view their concerns as part of their personalities.
D) People with OCD experience their obsessions and compulsions more intensely than people diagnosed with obsessive-compulsive personality disorder experience theirs.