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Ten IIT and 2 DCE students sit in a row....

Ten IIT and 2 DCE students sit in a row. The number of ways in which exactly 3 IIT student sit between 2 DCE students is `(A)` `.^10 C_3xx2!xx3!xx8!` `(B)` `10 !xx2!xx3!xx8!` `(C)` `5!xx2!xx9!xx8!` `(D)` none of these

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