Answer:
c. determining how managers are performing against prior year's operating results.
Step-by-step explanation:
Management compare actual performance against planned goals to enable them evaluate deficiencies in the actual performance which can give directions to areas that should be improved upon. Moreover, comparing actual performance and planned goals expose deficiencies in the system which management would take into consideration when making future plan hence eliminate unplanned expenditures.
Again, there is also identification of priorities to accomplish objectives when actual performance are compared against planned goals.