Given a math problem with context and a question and 5 answer choices, the task is to provide the correct answer choice based on the problem. You must choose one of the given answer choices by letter: a, b, c, d, or e; anything else is invalid.

[EX Q]: Problem: kim has 3 pairs of shoes; each pair is a different color. if kim randomly selects 2 shoes without replacement from the 6 shoes, what is the probability that she will select 2 shoes of the same color ?
Options: a. 2 / 5, b. 1 / 5, c. 1 / 9, d. 1 / 10, e. 1 / 25
[EX A]: b

[EX Q]: Problem: evaluate: 98612 / 22 * 11 * 70 = ?
Options: a. 700.4, b. 704.4, c. 740.4, d. 744.4, e. 700.0
[EX A]: b

[EX Q]: Problem: a trader bought a car at 20 % discount on its original price. he sold it at a 50 % increase on the price he bought it. what percent of profit did he make on the original price ?
Options: a. 17 %, b. 72 %, c. 20 %, d. 82 %, e. 16 %
[EX A]:
c