Which of the following probabilities for the sample points A, B, and C could be true if A, B, and C are the only sample points in an experiment?
A. $P(A) = -1/4$, $P(B) = 1/2$, $P(C) = 3/4$
B. $P(A) = 0$, $P(B) = 1/10$, $P(C) = 9/10$
C. $P(A) = 1/3$, $P(B) = 1/10$, $P(C) = 1/8$
D. $P(A) = 1/9$, $P(B) = 1/9$, $P(C) = 1/9$