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.

Problem: the smallest value of n, for which n + 2 is not a prime number, is
Options: a. 1,2, b. 4,6, c. 2,4, d. 8,12, e. 9,6
c