Definition: 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.
Input: Problem: how many numbers up to 300 and 700 are divisible by 2, 3 and 7 both together ?
Options: a. 9, b. 10, c. 11, d. 12, e. 13
Output:
a