For an Economist Normal Business Profits Are

For an economist normal business profits are:

A) a cost, because they represent payments necessary to keep the resources owned by the entrepreneur in the enterprise.
B) not a cost, because they cannot be accurately calculated.
C) not a cost, because they accrue to the entrepreneur.
D) not an economic cost, because they are not necessary to acquire and retain entrepreneurial ability.
E) none of the above.