A specific phobia is an anxiety disorder. It's defined by an intense, ongoing fear of a particular object, situation, or activity, which results in avoidance. Examples of common phobias are fear of heights, spiders, or flying.
- Generalized anxiety disorder (A) is characterized by excessive, uncontrollable worry about various everyday concerns, not a single specific object or situation.
- Obsessive-compulsive disorder (B) involves unwanted intrusive thoughts (obsessions) and repeated actions (compulsions) done to alleviate anxiety.
- Post-traumatic stress disorder (D) develops after experiencing or witnessing a traumatic event, causing symptoms like flashbacks, nightmares, and emotional detachment.
Consequently, the correct classification is (C), specific phobia.