Genent Industries, Inc. (GlI), developed standard costs for direct material and direct labor. In 2017, Gll estimated the following standard costs for one of their major products, the 30-gallon heavy-duty plastic container. Budgeted quantity Budgeted price $50 per pound $19 per hour Direct materials 0.4 pounds Direct labor 0.8 hours During July, Gll produced and sold 3,000 containers using 1,450 pounds of direct materials at an average cost per pound of $45 and 2,480 direct manufacturing labor hours at an average wage of $19.50 per hour. The direct manufacturing labor efficiency variance during July is O A. $1,240 favorable O B. $2,760 favorable O C. $1,560 unfavorable D. $1,520 unfavorable