A, B and C invest `90,000, `80,000 and ` 70,000 respectively in a business. A takes `6,000 per month as salary as Manager and B takes `5,000 per month as Assistant Manager, out of their profit. Share of C in a profit of `1,92,000 is

A

`17,500

B

56,000

C

`52,500

D

`18,000