A person goes two for an examination in ...

A person goes two for an examination in which there are four papers with a maximum of m marks from each paper.the number of ways in which one can get 2m marks is

`2m+^3c_(3)`

`1/3(m+1)(2m^2+4m+1)`

`1/3(m+1)(2m^2+4m+3)`

none of these

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