I only need question 11 A-C Thankyou!

Use the following information for questions 5-11: Company ABC manufactures radios and uses machine hours (MH) as its allocation base. The following information relates to the company's manufacturing overhead data for 2021: Budgeted output 33,200 radios Budgeted machine hours per radio 3 MH per radio Budgeted variable overhead rate per MH $18.50 per MH Budgeted fixed overhead rate per MH $15.70 per MH Actual output 25,900 radios Actual machine hours used 116,550 MH Actual variable overhead cost $1,748,250 Actual fixed overhead cost $1,398,600 5. Calculate the flexible-budget variance for fixed overhead for 2021. 6. Calculate the spending variance for fixed overhead for 2021. 7. Calculate the production-volume variance for fixed overhead for 2021. 11. Provide an explanation (i.e., a possible cause) for each of the following variances. What does each variance tell us about the company's performance (other than being favorable/unfavorable)? a. Fixed overhead spending variance (from question #6) b. Variable overhead spending variance (from question #9) c. Variable overhead efficiency variance (from question #10)