Answer:
The correct answer is letter "B": Both the billing department of an Internet Services Provider (ISP) and the mayor's office in a large city. The mayor's office in a large city.
Step-by-step explanation:
Profit centers are units within a company that operate as a small separate entity because it can generate its own profits. These units possess the management of a representative and a basic hierarchical structure. An example of a profit center is the sales department of a business.
In such a way, the billing department of an Internet Service Provider (ISP) does not generate revenues by itself since it is in charge of collecting debt but not producing it.