Answer: Option(B)
Firstly p (where p<n) balls are drawn from the Bag, and all are Green.
That is nCp,(where p<n) And total Green Balls Present in the Bag are
= n-p.
Total Balls left in the Urn(Bag) now (Red +Green)
= (m)+(n-p).
Probability that the next Ball now going to be picked is Green
= n-p/(m+n-p).