Ambrosia Foods produces a gourmet condiment that sells for $18 per unit. Variable cost is $6 per unit, and fixed costs are $5,000 per month. If Ambrosia expects to sell 1,500 units, compute the margin of safety in units. (Round any intermediate calculations up to the next whole unit.) O A. 417 units O B. 23 units O C. 1,500 units O D. 1,083 units