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: if the ratio of two number is 6: 7 and lcm of the number is 450 then what is the number.
Options: a. 11, b. 20, c. 25, d. 30, e. 35
[EX A]: a

[EX Q]: Problem: a soccer team played 280 games and won 65 percent of them. how many games did it win ?
Options: a. 182, b. 100, c. 104, d. 150, e. 124
[EX A]: a

[EX Q]: Problem: what is the remainder when you divide 2 ^ 200 - 1 by 7 ?
Options: a. 1, b. 2, c. 3, d. 4, e. 5
[EX A]:
c