Answer
C' = {..., -4, -2, 0, 2, 6, 10, 14}
This is the set of all negative even numbers and the numbers 0, 2, 6, 10, and 14.
Work Step by Step
U = {2, 4, 6, 8, 10, 12, 14, 16} C = {4, 8, 12, 16} C' is the set of elements not in C but in U. C' = {..., -4, -2, 0, 2, 6, 10, 14}