Study the pie charts given below carefully and answer each of the questions based on it. The following pie charts represent the percentage of the workers of five types for two years.

a = Award staff b = Managers of first class c=Managers of second class d = Managers of third class e = Executives
In 1996 if 500 managers of second class are on duty in the company then in 1996 how many managers of third class was on duty in the company?

Options

A. 300
B. 800
C. 200
D. None of these