John Has Been Classified as High in Introversion

John has been classified as high in introversion. Eysenck would predict that:

A) his nervous system is not as easily aroused as is an extravert's nervous system.
B) he would prefer a quiet environment, because he would tend to react to new stimuli less intensely than an extravert would.
C) he would seek out and thrive in a highly stimulating environment.
D) he would seek out and thrive in an environment that offered a relatively low level of stimulation.