A box has 6 black, 4 red, 2 white and 3 blue shirts are picked randomly, what is the probability that either both are white or both are blue?

A box has 6 black, 4 red, 2 white and 3 blue shirts are picked randomly, what is the probability that either both are white or both are blue?

A. 1/35

B. 4/105

C. 1/105

D. 4/35