Market share is:
A.
the ratio of the profit of the firm to the total profits of all firms in the industry, not including the firm itself.
B.
the ratio of the profit of the firm to the total profits of all firms in the industry, including the firm itself.
C.
the ratio of the sales revenue of the firm to the total sales revenue of all firms in the industry, not including the firm itself.
D.
the ratio of the sales revenue of the firm to the total sales revenue of all firms in the industry, including the firm itself.
Answer: D