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To fill 12 vacancies, there are 25 candi...

To fill 12 vacancies, there are 25 candidates of which 5 are from scheduled caste. If three of the vacancies are reserved for scheduled caste candidates while the rest are open to all; the number of ways in which the selection can be made is
a. `""^5C_3 xx ""^(22)C_9`
b. `""^22C_9-""^5C_3`
c. `""^22C_3+ ""^5C_3`
d. none of these

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