What One Function Differentiates A Business Manager From An Entrepreneur? ?

What one function differentiates a business manager from an entrepreneur?
A. the entrepreneur assumes the responsibility for the risk of failure for the business; the manager doesn’t.
B.the manager can fire and hire workers; the entrepreneur can’t.
C.the manager must be a good accountant; the entrepreneur doesn’t need to be.
D.the manager researches new products and the entrepreneur doesn’t
E.the manager supervises the production process but the entrepreneur doesn’t.