Task: Question Answering
Input (English): Problem: a grocer is storing soap boxes in cartons that measure 30 inches by 42 inches by 60 inches . if the measurement of each soap box is 7 inches by 6 inches by 5 inches , then what is the maximum number of soap boxes that can be placed in each carton ? 
Options: a ) 360 , b ) 252 , c ) 280 , d ) 300 , e ) 420
Output (English): a