Task: Question Answering
Input (English): Problem: the megatek corporation is displaying its distribution of employees by department in a circle graph . the size of each sector of the graph representing a department is proportional to the percentage of total employees in that department . if the section of the circle graph representing the manufacturing department takes up 18 ° of the circle , what percentage of megatek employees are in manufacturing ? 
Options: a ) 5 % , b ) 25 % , c ) 30 % , d ) 35 % , e ) 72 %
Output (English): a