Correct Answer - C
Consider the adjacent diagram
`Let OA =P_(1)`
`=` initial momentum of player northward
`AB =P_(2)` Final momentum of player towards west.
Clearly `OB =OA +AB`
Change in momentum `=p_(2) -p_(1)`
`=AB -OA =AB + (-OA)`
= Cleraly resultant `AR` will be along south west
![image](https://learnqa.s3.ap-south-1.amazonaws.com/images/161159011313123216141611590113.png)
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