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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?
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A$$\frac{x+y}{a+b}$$
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B$$\frac{a+b}{x+y}$$
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C$$\frac{a+\frac{b}{4}}{y-\frac{x}{2}}$$
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D$$\frac{a+\frac{b}{4}}{y-\frac{x}{2}}$$
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E$$\frac{1}{2}(a+b)\over{x+y}$$
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