A company has fixed costs of $900 and a per-unit contribution margin of $3. Which of the following statement is (are) true?

A.Total contribution margin equals the sum of variable cost plus fixed cost.

B.The situation described is not possible and there must be an error.

C.Once the break-even point is reached, the company will increase income at the rate of $3 per unit.

D.The firm will definitely lose money in this situation.