Which of the following terms is synonymous with 'business expenses'?

The term 'business expenses' refers to the costs incurred in the ordinary course of business operations. These expenses are essential for running a business and include various types of costs necessary to maintain and grow operations.

Each of the provided options fits within the broader category of business expenses. Professional fees represent costs associated with hiring experts or consultants for services necessary to the business. Operational costs encompass expenses associated with the day-to-day functioning of the business, such as rent, utilities, and supplies. Administrative expenses cover costs related to the administrative functions of the business, including salaries of administrative staff, office supplies, and other related expenses.

Since all the options reflect different aspects of costs typically classified as business expenses, the correct answer is that all of these terms are synonymous with 'business expenses.' This comprehensive view underscores the various types of costs that a business may categorize as expenses for accounting and financial reporting purposes.