Industry is best described as?

A. firm that sells a set of closely related commodities
A. industrial concern that is into production and selling of goods
B. a factory that produces different lines of product
C. a group of firms that sells a closely related set of products

Correct Answer: Option C

C. a group of firms that sells a closely related set of products

Explanation

An industry; economic activity concerned with the processing of raw materials and manufacture of goods in factories.