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The actual cost of direct labor per hour is $17.00 and the standard cost of direct labor per hour is $16.50. The direct labor hours allowed per finished unit is 0.25 hour. During the current period, 5,000 units of finished goods were produced using 3,500 direct labor hours. How much is the direct labor efficiency variance? O A. $37, 125 favorable O B. $38,250 unfavorable O C. $37,125 unfavorable O D. $38,250 favorable