The data below relate to a product of Bellingham Company. Standard costs: Materials, 2 pounds at $6 per pound Labor, 3 hours at $15 per hour $12 per unit $45 per unit Actual results were: Production Material purchased & used, 7,300 pounds Labor, 10,360 hours 3,600 units $ 42,340 $160,580 Required: (Be sure to indicate whether the variances are favorable or unfavorable and show your work.) a. Compute the direct material price variance. b. Compute the direct material usage variance. c. Compute the direct labor rate variance. d. Compute the direct labor efficiency variance