A specified part can be obtained by either two methods. Method A will have a fixed cost of $55,000 per year and variable cost of $25 per unit. Method B will have fixed cost of $75,000 per year and variable cost of $15 per unit. The number of units that must be produced each year for the two methods to be equally attractive is: 8,000 units 4,000 units 2,000 units 3,250 units