please provide correct answer from requirement A to F thank you

Problem 8. Variance Analysis Stewart Corporation makes a product with the following standard costs: Standard Standard Standard Quantity Price or Cost Per or Hours Ratel Unit Direct 9.31 $8.00 per $74.40 materials pounds! pound Direct $19.00 0.4 hours $7.60 labor Variable $7.00 per overhead 0.4 hours hour S2.80 per hour The company reported the following results concerning this product in August Originally budgeted output 3,000 units Actual output 3,100 units Raw materials used in production 30,370 pounds Purchases of raw materials 33.900 pounds Actual direct labor-hours 1,340 hours Actual cost of raw materials purchases $264.420 Actual direct labor cost $27,8721 Actual variable overhead cost $8,844 The company applies variable overhead on the basis of direct labor-hours. The direct materials purchases variance is computed when the materials are purchased. Required: a. Compute the materials quantity variance. b. Compute the materials price variance. c. Compute the labor efficiency variance. d. Compute the labor rate variance. e. Compute the variable overhead efficiency variance. f. Compute the variable overhead rate variance