Inability to leave one's home because of avoidance of severe anxiety suggests the existence of which anxiety disorder?

A. Posttraumatic stress response involves reliving traumatic events, flashbacks, and hyperarousal, not specifically avoidance due to anxiety about leaving the home. B. Agoraphobia is characterized by a fear of situations where escape might be difficult or help unavailable, leading to avoidance behavior such as being unable to leave home. It often co-occurs with panic disorder. C. Generalized anxiety disorder involves excessive worry about multiple areas of life but not specific avoidance behaviors like agoraphobia. D. Obsessive-compulsive disorder involves intrusive thoughts (obsessions) and repetitive behaviors (compulsions), but not the avoidance behavior characteristic of agoraphobia.