Task: Question Answering
Input (English): Problem: a shopkeeper labeled the price of his articles so as to earn a profit of 50 % on the cost price . he then sold the articles by offering a discount of 10 % on the labeled price . what is the actual percent profit earned in the deal ? 
Options: a ) 35 % , b ) 20 % , c ) 17 % , d ) 18 % , e ) none of these
Output (English): a