Which of the following individuals is exhibiting as a positive symptom of schizophrenia?
a. Joe seems to have no interest in the things that most people value--social relationships, work, hobbies--and he doesn't even seem to care that he has no "get up and go."
b. When Artur talks, his language is so jumbled it is almost impossible to understand. He skips from topic to topic in a disjointed way
c. Claudia scarcely speaks at all. She uses few words and seems to have few thoughts.
d. Aram seems to take no pleasure in being around people. He spends most of his time by himself.