Whitman has a direct labor standard of 2 hours per unit of output. Each employee has a standard wage rate of $24.00 per hour. During July, Whitman paid $192,000 to employees for 8,940 hours worked. 4,730 units were produced during July. What is the direct labor rate variance? (Do not round your intermediate calculations.)

a) $22,560 favorable

b) $35,040 favorable

c) $12,480 favorable

d) $22,560 unfavorable