The Degree of Operating Leverage Has Which of the Following

The degree of operating leverage has which of the following characteristics?

A) A change in quantity demanded will produce the same percentage change in EBIT as an identical change in price per unit of output, other things held constant.
B) The DOL relates the change in net income to the change in operating income.
C) If the firm has no debt, the DOL will equal 1.
D) The closer the firm is operating to the breakeven quantity, the smaller the DOL.
E) The DOL is not a fixed number for a given firm, but will depend upon the time zero values of the economic variable Q (Quantity) , P (Price) , and V (Volume) .