Explanation

12! and 14! are both multiples of all five answer choices, by the definition of the factorial operation. In order for A to be a multiple of one of the answer choices, the third number in the addition must also be a multiple.

Since 6 is divisible by two, and none of the other answer choices, the correct choice is A.

Since 6 is divisible by two, and none of the other answer choices, the correct choice is A.