The correct answer is Conversion hysteria. This condition describes a type of bodily disability where a person unconsciously converts anxiety into a belief that a part of their body has ceased to function. Malingering is when someone fakes illness for personal gain, hysterics is a general term for emotional excess, depression is a mood disorder with persistent sadness, and a phobia is an irrational fear. Conversion hysteria specifically refers to the manifestation of psychological stress in physical symptoms.