One Advantage of Using Virtual Reality Technology in the Treatment

One advantage of using virtual reality technology in the treatment of phobias is that:

A) the computer program automatically delivers magnetic impulses of various frequencies to regions of the brain thought to be involved in phobic responses.
B) it closely monitors the client's pulse, heart rate, and breathing so that the clinical psychologist has a detailed record of any physiological changes that occur during the therapy session.
C) people with severe phobias are more willing to seek virtual reality treatment than graduated exposure to the actual feared object or situation.
D) the implanted electrodes automatically send electrical impulses to the brainstem every time the individual feels anxious or fearful.