A marketing class of a college has a total strength of 30. It has formed three groups: G1, G2, and G3, which have 10, 10, and 6 students, respectively. If no student of G1 is on either of the other two groups, what is the greatest possible number of students who are on none of the groups?
(A) 6
(B) 7
(C) 8
(D) 10
(E) 14![]()
(A) 6
(B) 7
(C) 8
(D) 10
(E) 14
