William hears a voice inside his head that urges him to steal money and lab equipment from a medical research center. William is most likely experiencing ______, which are a ______ symptom of...

William hears a voice inside his head that urges him to

steal money and lab equipment from a medical research

center. William is most likely experiencing ______, which

are a ______ symptom of schizophrenia.
a) hallucinations; positive
b) delusions; positive
c) hallucinations; negative
d) delusions; negative