A normal profit is: a. revenues minus accounting costs only.
b. revenues minus accounting and opportunity costs.
c. revenues minus opportunity cost only.
d. a zero accounting profit.

b. revenues minus accounting and opportunity costs.

Explanation:

A normal profit occurs when the amount of profit generated by a company in a given period is equal to the amount of its costs, that is, in this situation the company's profit is sufficient to cover its costs and it manages to continue operating in a market in a way competitive, for this reason the normal profit

The opportunity cost refers to normal profit due to the fact that this is the amount that is equal to zero with respect to economic profit, which is what is necessary for the company to operate when considering the investment made.

d. low interest rates