The standard direct labor cost for producing one unit of product is 5 direct labor hours at a standard rate of pay of $20. Last month, 15,000 units were produced and 73,500 direct labor hours were actually worked at a total cost of $1,350,000. The direct labor quantity variance was

Select one: a. $30,000 unfavorable. b. $45,000 unfavorable. c. $45,000 favorable. d. $30,000 favorable.