Assume the following (1) sales = $200,000, (2) unit sales = 10,000, (3) the contribution margin ratio = 45%, and (4) net operating income = $10,000. Given these four assumptions, which of the following is true? Multiple Choice The variable expense per unit = $9.00 The total fixed expenses = $110,000 The total contribution margin = $90,000 O O O The break-even point is 5,000 units