In a box of 8 pens, a total of 3 are defective. If a customer buys 2 pens selected at random from the box, what is the probability that neither pen will be defective?
Choose the correct choice from the following
A) 2 / 10
B) 3 / 11
C) 4 / 13
D) 5 / 14
E) 6 / 17

Rationale: "p ( neither pen is defective ) = 5 / 8 * 4 / 7 = 5 / 14 the answer is d ."
Answer: D