Task: Question Answering
Input (English): Problem: if the price of sugar rises from rs . 10 per kg to rs . 11 per kg , a person , to have no increase in the expenditure on sugar , will have to reduce his consumption of sugar by 
Options: a ) 9 % , b ) 20 % , c ) 25 % , d ) 30 % , e ) none
Output (English): a