Answer:
The correct answer is option B.
Explanation:
A perfectly competitive market is a market structure where there is a large number of firms. These firms produce identical or homogenous products. There are relatively easy entry and exit in the firm. Â
The firms are price takers and face a perfectly elastic or horizontal line demand curve. Firms in all other market structures are price makers. Â
These firms can earn only normal profits in the long run because of easy entry and exit.