Pluto's budget for variable overhead and fixed overhead revealed the following information for an anticipated 40,000 hours of activity: variable overhead, $348,000; fixed overhead, $600,000. The company actually worked 43,000 hours and actual overhead incurred was: variable, $385,500; fixed, $608,000. Required: A. Compute Pluto's total cost variance for variable overhead and fixed overhead if the company uses a static budget to help assess performance. B. Compute Pluto's total cost variance for variable overhead and fixed overhead if the company uses a flexible budget to help assess performance. C. Which of the two budgets (static or flexible) is preferred for performance evaluations? Why