If the simple interest on a sum of money for 2 years at 5% per annum is Rs. 56, what is the compound interest on the same sum at the rate and for the same time?
Select the correct option:	A) s . 57.40	B) s . 57.22	C) s . 51.219	D) s . 56.18	E) s . 53.11

Rationale: "explanation : sum = ( 56 * 100 ) / ( 2 * 5 ) = rs . 560 amount = [ 560 * ( 1 + 5 / 100 ) 2 ] = rs . 617.4 c . i . = ( 617.4 - 560 ) = rs . 57.4 . answer : a"
Answer: A