Task: Question Answering
Input (English): Problem: a , b and c started a business with capitals of rs . 8000 , rs . 10000 and rs . 12000 respectively . at the end of the year , the profit share of b is rs . 1800 . the difference between the profit shares of a and c is ? 
Options: a ) 720 , b ) 266 , c ) 155 , d ) 600 , e ) 441
Output (English): a