The amount of principal Rs.8000 at compound interest at the ratio of 5% p.a. for 2 years is
Choose the correct choice from the following answers:
A) s . 9621 B) s . 6921 C) s . 8820 D) s . 6261 E) s . 6361

Rationale: "c . i = p ( 1 + r / 100 ) ^ n = 8000 ( 1 + 5 / 100 ) ^ 2 = rs 8820 answer : c"
Answer: C