Of 200 people surveyed, 80 percent own a cellular phone and 45 percent own a pager. if all 200 people surveyed own a cellular phone, or a pager, or both,
what percent of those surveyed either do not own a cellular phone or do not own a pager?
(a) 35%
(b) 45%
(c) 55%
(d) 65%
(e) 75%