Task: Question Answering
Input (English): Problem: a shopkeeper buys two articles for rs . 1000 each and then sells them , making 10 % profit on the first article and 10 % loss on second article . find the net profit or loss percent ? 
Options: a ) 200 , b ) 278 , c ) 100 , d ) 202 , e ) 270
Output (English): c