A invests Rs. 100000 in a business. Four months later B joins with an investment of Rs. 50000. 2 months after B joins, C joins with Rs. 150000 investment. At the end of the year, the profit was Rs. 50000. What is B's share in the profit?
ARs. 14000
BRs. 8000
CRs. 16000
DRs. 10000