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If alpha = x1x2x3 and beta = y1y2y3 be t...

If `alpha = x_1x_2x_3` and `beta = y_1y_2y_3` be two three digits numbers , the numbers , the number of pairs of `alpha` and `beta` can be formed so that `alpha` can be subtracted from `beta` without borrowing is

A

`2! 10! 10!`

B

`(45)(55)^2`

C

`3^2 cdot 5^3 cdot 11^2`

D

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B, C, D
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