Task: Question Answering
Input (English): Problem: there are 5 people who can build 5 houses in just 5 days . increase the amount of people to 100 . how long would it take these 100 people to build 100 houses ? 
Options: a ) 2 days , b ) 3 days , c ) 4 days , d ) 5 days , e ) 1 days
Output (English): d