Task: Question Answering
Input (English): Problem: a and b are two multiples of 14 , and q is the set of consecutive integers between a and b , inclusive . if q contains 9 multiples of 14 , how many multiples of 7 are there in q ? 
Options: a ) 20 , b ) 19 , c ) 18 , d ) 17 , e ) 16
Output (English): d