Kim has a bag with 4 blue marble, 4 black marble, 7 orange marbles, 2 red marbles, 6 yellow marbles, and 1 pink marble. If she chooses a marble twice at random and replaces the marble. P(blue and then black)?
A. 7 20/21
B. 3.75
C. 1/36
D. 2.57
E. 66