Beginning inventory in units 0 Units produced 4,800 Units sold 4,000 Sales $400,000 Material cost (unit level or variable) $96,000 Variable conversion cost used (committed) 48,000 Facility-level or fixed manufacturing cost $72,000 Indirect operating cost (fixed) $80,000 The variable cost of goods sold is: a. $110,000 b. $120,000 c. $144,000 d. $40,000 The absorption cost of goods sold is: a. $246,667 b. $120,000 c. $180,000 d. $40,000 The variable operating income is: a. $120,000 b. $140,000 c. $104,000 d. $128,000