Mathematics > Standard Multiple Choice

Read the following SAT test question and then click on a button to select your answer.?

At Central High School, the math club has 15?members and the chess club has 12?members. If a total of 13?students belong to only one of the two clubs, how many students belong to both clubs?

(A) 2
(B) 6
(C) 7
(D) 12
(E) 14