help: GWD3-30

不知道怎么做，多谢

Q30:

                     M = {-6, -5, -4, -3, -2}

                     T = {-2, -1, 0, 1, 2, 3}

If an integer is to be randomly selected from set M above and an integer is to be randomly selected from set T above, what is the probability that the product of the two integers will be negative?

A.    0

B.    1/3

C.    2/5

D.    1/2

E.    3/5

数吧

D

(5*3)/(5*6)=1/2