Which of the following is a valid probability distribution for a discrete random variable?

Which of the following is a valid probability distribution for a discrete random variable? Check all that apply.

A. 0.18, 0.12, 0.03, 0.08, 0.21, 0.04, 0.05, 0.16, 0.25, 0.21, 0.17
B. 0.02, 0.03, 0.21, 0.16, 0.04, 0.12, 0.18, 0.05, 0.16, 0.03
C. 0.2, 0.2, 0.2, 0.2, 0.2
D. 0.1, -0.2, 0.1, -0.2 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1
E. 1.0