There is an important relation between contribution margin and profit. Which of the following statements is not true?

Group of answer choices

As the number of units sold increases, total contribution margin increases, but fixed costs remain the same.

As the number of units sold decreases, total contribution margin decreases, but fixed costs remain the same.

As the number of units sold rises, profit increases by the additional contribution margin per unit.

As the number of units sold falls, both profit and fixed costs decline.