The standard costs and actual costs for direct labor in the manufacture of 2,500 units of product are as follows: Standard Costs Direct labor 7,500 hours @ $11.80 Actual Costs Direct labor 7,400 hours @ $11.40 The direct labor time variance is a. $1,180 favorable b. $1,140 unfavorable c. $1,180 unfavorable d. $1,140 favorable