Use this information to answer the question that follow. The standard costs and actual costs for factory overhead for the manufacture of 2,900 units of actual production are as follows: Standard Costs Fixed overhead (based on 10,000 hours) 3 hours per unit @ $0.76 per hour Variable overhead 3 hours per unit @ $2.06 per hour Actual Costs Total variable cost, $17,900 Total fixed cost, $8,100 The fixed factory overhead volume variance is a. $0 b. $790 unfavorable c. $790 favorable d. $988 unfavorable