3.If you believe there are space aliens living in your attic, a psychologist would probably believe you are having a(an) ______________________; if you are the only one who could see them, he would be...

3.If you believe there are space aliens living in your attic, a psychologist would probably believe you    are having a(an) ______________________; if you are the only one who could see them, he would be certain that you are having a(an) _________________________________ .

a.  delusion; hallucination

b.  hallucination; delusion

c. hallucination; hallucination

d. delusion; delusion