Answer: to historical performance or budget
Explanation:
A profit center in a business is a division that is able to make revenues independently and contribute to the revenue of the entire business. In evaluating the performance of a profit center manager, it is best to compare the performance to a budget or their historical performance.
This is because profit centers engage in different businesses and so their revenue making style will be unique. Some profit centers will make more than others because of the goods they produce or the way they produce it. It is therefore best to compare a profit center to an internal measure such as the budget and historical performance.
If the profit center exceeds either of these then they are performing well.
 Protectionism is the act of using quotas or tariffs to shield one or more industries within a country's economy from foreign competition.
The answer is: B) professional support services
Skills in developing instructional materials and research make you a very valuable assets in providing data that needed by the people on the field (the front liners).
The duty of professional support services is to collect relevant data from company operations, processing that data, and provide instructions or advice for the front liners on how to use that data to their advantage.
