A can do a certain work in 12 days and B can do it in 18 days. They worked together for 4 days. The remaining work was completed by C alone in 6 days. If they get ₹3,240 for the whole work, then the share of C in this amount will be:

A

₹ 1,080

B

₹ 1,440

C

₹ 1,260

D

₹ 1,170