Task: Question Answering
Input (English): Problem: the water level in a rectangular swimming pool measuring 20 feet by 25 feet is to be lowered by 6 inches . how many gallons of water must be removed ? ( 1 cu ft = 7.5 gallons ) 
Options: ['a ) 100', 'b ) 250', 'c ) 1875', 'd ) 1200', 'e ) 5625']
Output (English): c