If |{:(.^(9)C(4),.^(9)C(5),.^(10)C(r)),(...

If `|{:(.^(9)C_(4),.^(9)C_(5),.^(10)C_(r)),(.^(10)C_(6 ),.^(10)C_(7),.^(11)C_(r+2)),(.^(11)C_(8),.^(11)C_(9),.^(12)C_(r+4)):}|=0` , then the value of `r` is equal to

A

6

B

4

C

5

D

None of these

Verified by Experts

The correct Answer is:

C

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