Any Positive Economic Profit or Positive Net Present Value Must

Any positive economic profit or positive net present value must arise from

A) market imperfections or inefficiencies such as a monopoly situation.
B) cost-saving projects that allow the firm to reduce costs below the current level such as economies of scale and access to distribution channels.
C) government contracts or preferences.
D) two of the above are correct.
E) all of the above statements are correct