Practicality Partnership provides budgeting and financial investment counseling. The firm earned $500,000 in revenue and incurred $100,000 in variable costs last month. If the firm has $250,000 in fixed costs each month, Last month, what was the firm's margin of safety (in revenue dollars) and degree of operating leverage?

Answers:	a. Margin of safety: $312,500; Degree of operating leverage: 2.667
	b. Margin of safety: $187,500; Degree of operating leverage: 0.375
	c. Margin of safety: $187,500; Degree of operating leverage: 2.667
	d. Margin of safety: $312,500; Degree of operating leverage: 0.375