Answer the following questions using the information below: Polly's Pizza Manufacturing prepared the a flexible budget for last month. Some of the variance analyses are reported below. "F" denotes a favorable variance and "U" denotes an unfavorable variance. Flexible Variances Budget Price Efficiency Direct labor 7,500 112U 750F The actual amount spent for direct manufacturing labor was: O a) $6.638 O b) $6,862 O c) $ 8,128 d) $8,362