Which of the following disorders features compulsive behaviors?

Obsessive Compulsive Disorder (OCD) is characterized by the presence of compulsive behaviors, which are actions that individuals feel driven to perform in response to obsessions or according to rigid rules. These compulsions are often aimed at reducing anxiety or preventing a feared event or situation, even if they are not realistically connected to the outcome. For example, someone with OCD may feel compelled to wash their hands repeatedly or check locks multiple times to alleviate their intrusive thoughts.

In contrast, other disorders listed do not primarily feature compulsive behaviors in the same way. While bipolar disorder may involve impulsive actions during manic phases, it does not involve the same compulsive rituals that are characteristic of OCD. Social phobia focuses on intense fear of social situations, leading to avoidance behaviors rather than compulsive actions. Narcolepsy is a neurological disorder affecting sleep and does not involve a behavioral component related to compulsions. Therefore, the presence of compulsive behaviors distinctly identifies OCD as the correct answer in this context.