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Integers a and b are consecutive multiples of 6. Integers x and y are consecutive multiples of 8. In terms of a, b, x, and y, what is the ratio of the average of a and b and the average of x and y?
A.x+ya+b
B.a+bx+y
C.a+b4y−x2
D.a+b4y−x2
E.12(a+b)x+y
我的答案：