Bonnot Corporation makes a product that has the following direct labor standards Standard direct labor-hours 0.2 bours per unit $21.00 per hour S4.20 per unit Standard direct Inbor rate. Standard cost The company budgeted for production of 2,100 units in October, but actual production was 1,900 units. The company used 410 direct labor-hours to produce this output. The actual direct labor rate was $20.60 per hour. The labor efficiency variance for October is Select one: a. $618 U b. 5630 F c$618 F d. 5630 U