please tell me Which of the following statements about firms and markets is incorrect

Select one:

a.Contracts for products sold in markets transfer permanently the ownership of a good from the seller to the buyer.

b.The only way to solve the conflict of interest arising in a firm is to strictly monitor the workers' performance.

c.Conflict of interest in firms arises as managers do not automatically benefit from their contributions to profits.

d.Owners and workers in a firm share interest as they both want the firm's success.

e.Economic power is concentrated in owners and managers within a firm.