Task: Question Answering
Input (English): Problem: find the difference between c . i and s . i on a sum of money rs . 2000 for 2 years . at 4 % p . a 
Options: a ) rs . 2.20 , b ) rs . 3.20 , c ) rs . 4.20 , d ) rs . 5.20 , e ) rs . 3.25
Output (English): b