Exhibit 11-1

Firms

Market Share

A 17%

B 13%

C 11%

D 10%

E 9%

F 8%

G 6%

H 6%

I 5%

J 5%

K 5%

L 5%

Refer to Exhibit 11-1 above.The four firm ratio for this industry is

Group of answer choices

A. 51%

B. 41%

C. 49%

D.13%