Task: Question Answering
Input (English): Problem: a student completes a 3 part exam as follows . the student completes section a in 10 minutes and takes an equal time to complete the two remaining sections . what is the ratio of time spent on section c to section a if the total duration is 1 hour ? 
Options: a ) 5 : 2 , b ) 4 : 1 , c ) 4 : 3 , d ) 3 : 2 , e ) 2 : 1
Output (English): a