Which of the Following Statements Best Describes Schumpeter's View of Profits

Which of the following statements best describes Schumpeter's view of profits?

A) Profits occur only in an economy when full employment is achieved.
B) Competition within a capitalist economy would tend to result in zero economic profit.
C) The source of profits,whatever level they may be,is the result of entrepreneurial activity.
D) Profits occur only when the economy is in a boom.