A bag contains 4 red, 4 blue and 2 green balls. If 2 ballsare picked at random, what is the probability that both are red? Choices:
A) 2 / 15 B) 2 / 21 C) 5 / 26 D) 3 / 29 E) 4 / 27

Rationale: "p ( both are red ) , = 4 c 210 c 2 = 4 c 210 c 2 = 6 / 45 = 2 / 15 a"
Answer: A