A bag contains 3red, 2blue and 4green balls. If 2 balls are picked at random, what is the probability that both are red?
Choose the correct choice from the following answers:
A) 1 / 12 B) 1 / 13 C) 1 / 14 D) 1 / 15 E) 1 / 18

Rationale: "p ( both are red ) , = 3 c 2 / 9 c 2 = 1 / 12 a"
Answer: A