A started a business with Rs 20000 and B joined after some time with Rs 25000. If A and B share the profit in the ratio of 1 : 2 respectively, then what is the ratio of the time period of investment for A and B respectively?

Options

A. A. `1 : 2 `
B. B. `5 : 6 `
C. C. ` 5 : 8 `
D. D. `5 : 7 `