There are 5 green, 7 red balls. Two balls are selected one by one without replacement. Find the probability that first is green and second is red.

There are 5 green, 7 red balls. Two balls are selected one by one with

1.	There are 5 green, 7 red balls. Two balls are selected one by one without replacement. Find the probability that first is green and second is red.
A.	32/126
B.	31/134
C.	35/132
D.	42/144
Answer» D. 42/144