Task: Question Answering
Input (English): Problem: p alone can complete a job in 5 days . the work done by q alone in one day is equal to one - fourth of the work done by p alone in one day . in how many days can the work be completed if p and q work together ? 
Options: a ) 2.5 , b ) 3.0 , c ) 3.5 , d ) 4.0 , e ) 4.5
Output (English): d