Margin of Safety (MOS) is defined as: a.Difference between total sales and variable costs b.Difference between marginal contribution and fixed costs c.Difference between current sales and fixed costs d.Difference between current sales and sales at the tie point

Part II.

Sales of a product have already passed the tie point: a. Each unit sold above the tie point contributes a profit equal to the selling price. b.Each unit sold above the tie point contributes a variable cost equal to the sale price c.Each unit sold above the tie point contributes profit equal to the marginal contribution d.Each unit sold above the tie point contributes to covering fixed costs