P, Q and R are partners and invest in a business. P invests 1/5th of total investments and Q invests 1/4th of the total investments. What is the ratio of investments of P, Q and R respectively?

A

4 : 8 : 11

B

4 : 5 : ll

C

4 : 7 : 11

D

4 : 5 : 9