Which of the Following Statements Is True Regarding Cognitive Functioning

Which of the following statements is true regarding cognitive functioning in people with schizophrenia?

A) Some researchers have observed that people with schizophrenia have difficulty integrating sensory information.
B) Nearly 25% of people with schizophrenia appear to be within normal cognitive functioning.
C) People with schizophrenia may experience altered cognitive functioning not as a consequence of their disease but because of their medication.
D) It is possible that the degree of cognitive impairment is related to the severity of the schizophrenic episode.
E) All of the above.