In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?	Select:
A) 3/4	B) 1/3	C) 7/19	D) 8/21	E) 9/21
7C1/21C1=7/21=1/3   ANSWER:1/3
<result>B</result>
In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?