The simple interest on a certain sum for 3 years at 12% p.a. is ₹6,750. What is the compound interest(in ₹) on the same sum for 2 years at 20% p.a., if interest is compounded half-yearly? (rounded off to the nearest ₹)

A

8,000

B

8,702

C

6,750

D

7,729