Task: Question Answering
Input (English): Problem: yesterday ' s closing prices of 2,640 different stocks listed on a certain stock exchange were all different from today ' s closing prices . the number of stocks that closed at a higher price today than yesterday was 20 percent greater than the number that closed at a lower price . how many of the stocks closed at a higher price today than yesterday ? 
Options: a ) 484 , b ) 726 , c ) 1,100 , d ) 1,320 , e ) 1,440
Output (English): e