Task: Question Answering
Input (English): Problem: the digit sum of the year 2007 is 2 + 0 + 0 + 7 = 9 , which is a square number . how many years during the 20 - first century have a square digital sum ? 
Options: a ) 13 , b ) 14 , c ) 15 , d ) 16 , e ) 17
Output (English): d