According to the activation-synthesis hypothesis, it should be possible to predict (with better than chance accuracy) the content of a person's dreams if we know what information about the person?

a. concentration of serotonin and acetylcholine in the cerebral cortex
b. number and type of emotional experiences during the day
c. stimuli currently acting on the body and areas of spontaneous brain activity
d. time the person went to sleep and the current time

c