If Rs. 19,200 is divided between 'P', 'Q' and 'R' in such that for every rupee that 'P' has, 'Q' has 20 paise, and for every rupee that 'Q' has, 'R' has 40 paise, then the share of 'R' in rupees is

A

720

B

1200

C

1620

D

6200