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 11 multiples of 14 , how many multiples of 7 are there in q ? 
Options: a ) 19 , b ) 20 , c ) 21 , d ) 22 , e ) 23
Output (English): c