Task: Question Answering
Input (English): Problem: set a consists of the integers from 1 to 12 , inclusive , while set b consists of the integers from 5 to 15 , inclusive . how many distinct integers do belong to the both sets at the same time ? 
Options: a ) 8 , b ) 10 , c ) 12 , d ) 15 , e ) 9
Output (English): a