john and peter are among the 9 players a volleyball coach can choose from to field a 6 - player team . if all 6 players are chosen at random , what is the probability of choosing a team that includes john and peter ? Choose the correct choice from the following answers
A) 3 / 10  B) 4 / 11  C) 5 / 12  D) 6 / 13  E) 7 / 15

Rationale: the total possible ways of selecting a 6 - member team is 9 c 6 = 84 the possible ways which include john and peter is 7 c 4 = 35 the probability of choosing both john and peter is 35 / 84 = 5 / 12 the answer is c .
Answer: C