Task: Question Answering
Input (English): Problem: a retailer purchases shirts from a wholesaler and then sells the shirts in her store at a retail price that is 50 percent greater than the wholesale price . if the retailer decreases the retail price by 30 percent this will have the same effect as increasing the wholesale price by what percent ? 
Options: a ) 15 , b ) 20 , c ) 10 , d ) 5 , e ) 8
Output (English): d