A bag contains equal numbers of red, green, and yellow marbles. If Geeta pulls three marbles out of the bag, replacing each marble after she picks it, what is the probability that at least one will be red?

A. 8/27
B. 19/27
C. 20/27
D. 7/9
E. 22/27

[spoiler]OA=B[/spoiler]

Source: Manhattan GMAT