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 108° of the circle, what percentage of MegaTek employees are in manufacturing?  Choose the most appropriate option:
A) 20 %  B) 25 %  C) 30 %  D) 35 %  E) 72 %

Rationale: "answer : c 108 ° divided by 360 ° equals 0.3 , therefore the sector is equal to 30 % of the total"
Answer: C