The capacities of three containers P, Q and R are in the proportion of 5 : 4 : 8. They are completely filled with a mixture of milk and water in the proportions of 1 : 4. 2 : 3 and 3 : 5, respectively. If the mixtures of all the three containers are mixed together, then what will be the proportion of milk to water in the final mixture?

A

1 :2

B

16: 81

C

25 : 64

D

28 : 57