Alfred Suffers from an Extreme and Irrational Fear of Spiders

Alfred suffers from an extreme and irrational fear of spiders.His fear is exaggerated and disproportionate to the actual danger he might be in if he did encounter a spider.Alfred's fear of spiders is so intense that he would go to almost any length to avoid coming into contact with them.Alfred is most likely to be diagnosed with which of the following disorders?

A) Specific phobia
B) Generalized anxiety disorder
C) Social anxiety disorder
D) Post-traumatic stress disorder