Final answer:
A flexible budget evaluates the operation results at the actual level of activity, providing a more accurate assessment of performance. Hence the correct answer is option A
Step-by-step explanation:
The correct answer is A) Flexible budget. A flexible budget evaluates the operation results at the actual level of activity by adjusting the budgeted amounts based on the specific level of activity achieved. It allows for variations in activity levels and provides a more accurate assessment of performance.