Kim has 5 pairs of shoes; each pair is a different color. If Kim randomly selects 2 shoes without replacement from the 10 shoes, what is the probability that she will select 2 shoes of the same color?
Choose the most appropriate option
A) 2 / 5  B) 1 / 5  C) 1 / 9  D) 1 / 10  E) 1 / 25

Rationale: "total pairs = 10 c 2 = 45 ; same color pairs = 5 c 1 * 1 c 1 = 5 ; prob = 1 / 9 or 2 / 10 * 1 / 9 * 5 = 1 / 9 ans c"
Answer: C