Which statement is true regarding obsessive-compulsive disorder related compulsions?

Choice A reason: Compulsions are defined as repetitive behaviors or mental acts that an individual feels driven to perform in response to an obsession or according to rules that must be applied rigidly. The compulsion is the behavioral reaction to the internal distress or anxiety generated by the intrusive obsessive thought. Choice B reason: While it may seem like avoidance, the clinical purpose of a compulsion is actually to neutralize the anxiety or prevent a dreaded event or situation from occurring. Patients do not use compulsions to "avoid" having the thought, but rather to cope with the perceived threat or distress the thought has already caused. Choice C reason: Compulsions are intrinsically linked to obsessions. They are "functionally related" because the specific compulsion is usually designed to address the specific content of the obsession (e.g., hand washing in response to contamination fears). They are almost never separate or unrelated phenomena in the context of OCD. Choice D reason: For a diagnosis of OCD, the obsessions or compulsions must be time-consuming (taking more than 1 hour per day) or cause clinically significant distress or impairment. Therefore, by definition, they are not infrequent; they are pervasive, repetitive, and typically cause a major disruption in the patient’s daily life.