Task: Question Answering
Input (English): Problem: what is the greatest 6 - digit number when divided by 6 , 7 , 8 , 9 , and 10 leaves a remainder of 3 , 4 , 5 , 6 and 7 respectively ? 
Options: a ) 456780 , b ) 678910 , c ) 997479 , d ) 997917 , e ) 997920
Output (English): d