Task: Question Answering
Input (English): Problem: to produce an annual income of rs . 1200 from a 12 % stock at 90 , the amount of stock needed is : 
Options: a ) rs . 10,000 , b ) rs . 10,800 , c ) rs . 14,400 , d ) rs . 16,000 , e ) none of these
Output (English): a