At the beginning of the year, Rangle Company expected to incur $54,000 of overhead costs in producing 6,000 units of product. The direct material cost is $20 per unit of product. Direct labor cost is $30 per unit. During January, 600 units were produced. The total cost of the units made in January was: A. $30,000 b. $5,400 c. $35,400 d. None of these answers is correct.