Task: Question Answering
Input (English): Problem: albert buys 4 horses and 9 cows for rs . 13,400 . if he sells the horses at 10 % profit and the cows at 20 % profit , then he earns a total profit of rs . 1880 . the cost of a horse is ? 
Options: a ) 1299 , b ) 2788 , c ) 2000 , d ) 2981 , e ) 2881
Output (English): c