Can someone calculate the break even analysis, possible answers given, thanks

Break-even analysis. ClockWatchers is about to introduce a new employee monitoring tool and has determined that it will charge $100 per unit. The firm must decide whether or not to purchase a high-capacity manufacturing machine. If the high-capacity machine is selected, then the cash fixed costs will be $5,000 per year, with variable costs of $50 per unit and depreciation and amortization expenses of $2,000. Otherwise the fixed costs will be $2,000, with variable costs of $75 per unit and depreciation and amortization expenses of $500. If EBIT Break-even is how the firm evaluates its projects, then above what level of expected sales should ClockWatchers choose the high fixed cost alternative?

120 units.

90 units.

60 units.

180 units.