D-20 If JMJ Industries realizes a profit of $4.00 per unit sold, what is the fixed-cost portion of their production costs? Their variable costs are $1.50 per unit, and they sell 1000 units per year at a price of $6.00 per unit. (a) There are no fixed costs in this type of problem. (b) $250NON 150 (c) $500 to subi letos siste (d) $2000 o noso