Stefan and Darnell have been diagnosed with schizophrenia. Stefan walks around the room rapidly, talking endlessly, and swinging his arms. Darnell stands in one position for hours at a time, responding to nothing. Which statement is true about their behavior?
a. Both Stefan's and Darnell's behaviors are common motor disturbances seen in schizophrenia.
b. Stefan's behavior is typical of schizophrenia; Darnell's is extremely unlikely.
c. Stefan's behavior never occurs in schizophrenia; Darnell's behavior is typical of schizophrenia.
d. Neither Stefan's nor Darnell's behavior occurs in schizophrenia.
A
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