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A rectangle with sides 2m-1 and 2n-1 div...

A rectangle with sides 2m-1 and 2n-1 divided into squares of unit length the number of rectangles which can be formed with sides of odd length is

A

`m^2n^2`

B

mn(m+1)(n+1)

C

`4^(m+n-1)`

D

none of these

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The correct Answer is:
A
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