Task: Question Answering
Input (English): Problem: two different primes may be said torhymearound an integer if they are the same distance from the integer on the number line . for instance , 3 and 7 rhyme around 5 . what integer r between 1 and 20 , inclusive , has the greatest number of distinct rhyming primes around it ? 
Options: a ) 12 , b ) 15 , c ) 17 , d ) r = 18 , e ) 20
Output (English): d