Suppose U={...-3,-2,-1,0,1,2,3...} is the universal set and R={...-3,-1,1,3...}. What is R'?

Question

A. {-2,0,2}
B. {...-4,-2,0,2,4...}
C. {...-4,-2,2,4...}
D. {-4,-2,2,4}
I think it would be c but I am not sure . Thank you to anyone who helps :) .

Answer 1

I have actually changed my answer to b. Sorry about that :/

Answer 2

R looks like odds, so R' is evens

don't forget zero

Answer 3

Thank you! I really appreciate it :).