A. y= 1/3x +5 doesn't make it even.
B. y=6 you get that with 2+4, It's related because 2+2=4 and 4+2=6 which makes it even.
C. wouldn't be neither because 2 & 3 aren't related because it's an odd number.
D. is not the answer because 2 and 4 are related to each other because 2+2 is 4.
Answer would probably be A.