A person predicts the outcome of 20 cric...

A person predicts the outcome of 20 cricket matches of his home team. Each match can result in either a win, loss, or tie for the home team. Total number of ways in which he can make the predictions so that exactly 10 predictions are correct is equal to a. `^20 C_(10)xx2^(10)` b. `^20 C_(10)xx3^(20)` c. `^20 C_(10)xx3^(10)` d. `^20 C_(10)xx2^(20)`

`""^(20)C_(10)*2^(10)`

`""^(20)C_(10)*3^(20)`

`""^(20)C_(10)*3^(10)`

`""^(20)C_(10)*2^(20)`

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