Question 4 of 10 Amelia is in an institution. Sometimes she laughs for no apparent reason, and at other times she sits without expression all day long . Sometimes she thinks people in the wall are looking at her. She suffers from: A. dissociative fugue. B. dissociative identity disorder. C. schizophrenia. D. insanity.

melia's symptoms, which include laughing for no apparent reason, sitting without expression, and experiencing delusions (such as thinking people in the wall are looking at her), are indicative of schizophrenia. Schizophrenia is a mental disorder characterized by disruptions in thought processes, perceptions, emotional responsiveness, and social interactions.<br /><br />Therefore, the correct answer is:<br /><br />C. schizophrenia.