According to a survey, 7 percent of teenagers have not used a computer

According to a survey, 7 percent of teenagers have not used a computer to play games, 11 percent have not used a computer to write reports, and 95 percent have used a computer for at least one of the above purposes. What percent of the teenagers in the survey have used a computer both to play games and to write reports?

(A) 13%
(B) 56%
(C) 77%
(D) 87%
(E) 91%