A store carries four brands of DVD players: J, G, P, and S. From past records, the manager found that the relative frequency of brand choice among customers varied. Which of the following probability assignments for a particular customer choosing a particular brand of DVD player would have to be rejected? Why?

(A) P(J) = .15, P(G) = -.35, P(P) = .50, P(S) = .70
(B) P(J) = .32, P(G) = .28, P(P) = .24, P(S) = .30
(C) P(J) = .26, P(G) = .14, P(P) = .30, P(S) = .30