Psychopathology: Discussion Post

Within 250-300 words elaborate for each DQ, provide reference(s) as well. 

DQ1) In previous versions of the DSM, anxiety disorders and obsessive-compulsive disorders were in the same category. However, in the current version of the DSM, they have been placed in separate categories. What distinctions between these disorders might justify this separation?

DQ2) Describe the difference between a common fear and a phobia. Select and describe a specific phobia. What are some possible causes for the phobia described? List and describe some possible treatments.