Task: Question Answering
Input (English): Problem: donovan and michael are racing around a circular 400 - meter track . if donovan runs each lap in 45 seconds and michael runs each lap in 36 seconds , how many laps will michael have to complete in order to pass donovan , assuming they start at the same time ? 
Options: a ) 8 , b ) 7 , c ) 6 , d ) 5 , e ) 9
Output (English): d