A4. The sum of three consecutive even numbers is always:
(A) divisible by 4
(B) an odd number
(C) divisible by 3
(D) a multiple of 8
(E) divisible by 8
A4. Three consecutive even numbers can be written as $2 n, 2 n+2$ and $2 n+4$. Their sum is $6 n+6$ and is therefore always divisible by 3.