Answer:
e) It is the ratio of a firm's sales revenues or unit sales to those of the industry.
Explanation:
Market share is the term used to describe the share in total sales of the market for the particular product produced by the organization in concern.
Individual firm's market share = [tex]\frac{Sales revenue of firm}{Total sales of the product in the market}[/tex]
This, clearly relates to statement (e) in the option as that statement includes the ratio of firm's sales to the sales in the market.
Therefore, correct option is
Statement e)