Please answer the questions in the document that is attached.

\"Wonderful! Not only did our salespeople do a good job in meeting the sales budget this year, but our production people did a good job in controlling costs as well,\" said Kim Clark, president of Martell Company. \"Our $22,700 overall manufacturing cost variance is only 6% of the $1,536,000 standard cost of products made during the year. That's well within the 3% parameter set by management for acceptable variances. It looks like everyone will be in line for a bonus this year.\" The company produces and sells a single product. The standard cost card for the product follows: Standard Cost Cardper Unit Direct materials, 3.00 feet at $3.00 per foot Direct labor, 1.2 direct labor-hours at $11 per direct labor-hour Variable overhead, 1.2 direct labor-hours at $2.00 per direct labor-hour Fixed overhead, 1.2 direct labor-hours at $5.50 per direct labor-hour $ 9.00 13.20 2.40 6.60 Standard cost per unit $ 31.20 The following additional information is available for the year just completed: a . b . c. d . The company manufactured 25,000 units of product during the year. A total of 74,000 feet of material was purchased during the year at a cost of $3.20 per foot. All of this material was used to manufacture the 25,000 units. There were no beginning or ending inventories for the year. The company worked 33,000 direct labor-hours during the year at a direct labor cost of $10.70 per hour. Overhead is applied to products on the basis of standard direct labor-hours. Data relating to manufacturing overhead costs follow: Denominator activity level (direct labor-hours) Budgeted fixed overhead costs Actual variable overhead costs incurred Actual fixed overhead costs incurred 26,000 $ 143,000 $ 72,600 $ 140,200 For manufacturing overhead compute: a The variable overhead rate and efficiency variances for the year. . b The fixed overhead budget and volume variances for the year