If the simple interest on a sum of money for 2 years at 5% per annum is Rs. 58, what is the compound interest on the same sum at the rate and for the same time?	Choose the correct choice from the following options:
A) s . 59.45
B) s . 56.22
C) s . 51.219
D) s . 59.18
E) s . 51.11

Rationale: "explanation : sum = ( 58 * 100 ) / ( 2 * 5 ) = rs . 580 amount = [ 580 * ( 1 + 5 / 100 ) 2 ] = rs . 639.45 c . i . = ( 639.45 - 580 ) = rs . 59.45 answer : a"
Answer: A