The following table shows the percentage of output supplied by the top eight firms in four different industries. (4 Points)

Firm	Industry A	Industry B	Industry C	Industry D
1	0.24	0.46	0.10	0.32
2	0.13	0.24	0.08	0.16
3	0.10	0.10	0.06	0.08
4	0.08	0.05	0.05	0.04
5	0.05	0.04	0.04	0.02
6	0.03	0.03	0.03	0.01
7	0.02	0.02	0.02	0.01
8	0.01	0.01	0.01	0.01

a.What is the concentration ratio in Industry C?

b.What is the concentration ratio in Industry B?

c. From the concentration ratios you calculated what type of industry is represented by C and what type of industry is represented by B?