A standard costing system is used at Besse Pte Ltd. in which machine hours is the measure of activity. Besse's flexible budget for manufacturing overhead is below, followed by data pertaining to operations for the most recent period. Flexible Budget: Budgeted Level of Activity: 4,700 machine hours Overhead costs at the Budgeted activity level: Variable Overhead Cost: $29,140 Fixed Overhead Cost: $8,084 Most Recent period's operations: Actual level of activity: 4,300 machine hours Standard level of activity for output: 4,200 machine hours Actual total variable overhead cost: $25,843 Actual total fixed overhead cost: $7,611 PART A What is the variable overhead rate variance?Answer 1 Question 26 PART B What is the variable overhead efficiency variance?Answer 2 Question 26 PART C What is the fixed overhead budget variance?Answer 3 Question 26 PART D What is the fixed overhead volume variancev