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If Deltar= |[2r-1, mCr,1],[m^2-1,2^m,m+1...

If `Delta_r= |[2r-1, mC_r,1],[m^2-1,2^m,m+1],[m^2+m+1,2^m+1,m+2]|`, then `sum_(r=0)^m Delta_r=`

A

0

B

`m^2-1`

C

`2^n`

D

`2^m sin ^2 (2^m )`

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The correct Answer is:
A
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