The costs of running a business are called a. startup costs b. cash flow c. operating expenses d. fixed costs

The costs of running a business are called "operating expenses".

Operating expenses will be costs related with the maintenance and organization of a business on an everyday premise. The operating expense is a segment of working pay and is typically pondered an organization's pay articulation.  

Organizations need to monitor both operating expenses and expenses related with non-working exercises, for example, interest costs on an advance. The two expenses are represented diversely in an organization's books, enabling investigators to decide how costs are related with income creating exercises and regardless of whether the business can be run all the more productively.