Person A started a business by investing ₹65,000. After a few months. B joined him by investing ₹50.000. Three months after the joining of B, C joined the two with an investment of ₹55.000. At the end of the year. A got 50% of profit as his share. For how many months did A alone finance the business?

A

2

B

3

C

5

D

4