The Difference Between Economic Profits and Normal Profits Is That

The difference between economic profits and normal profits is that:

A) normal profits are earnings based on the normal competitive return to one's own labor; economic profits are the above-normal returns associated with prices that exceed competitive prices
B) economic profits are earnings based on the normal competitive return to one's own labor; normal profits are the above-normal returns associated with prices that exceed competitive prices
C) normal profits are earnings based on the normal competitive return to one's own labor; economic profits are the above-normal returns associated with prices that exceed monopolistic prices
D) economic profits are earnings based on the noncompetitive return to one's own labor; normal profits are the above-normal returns associated with prices that exceed competitive prices
E) None of these answers are correct.