Final answer:
To enter expense transactions in QuickBooks Online, a user should select 'Expenses' from the navigation bar and then choose the 'Expenses' tab.
Step-by-step explanation:
When entering expense transactions in QuickBooks Online using the navigation bar, the correct action is indeed option B: Select "Expenses" and then choose the "Expenses" tab. QuickBooks Online is designed to streamline financial management for businesses, and the Expenses feature is a key component for tracking and categorizing outgoing funds.
By selecting "Expenses" from the navigation bar and accessing the corresponding tab, users can efficiently record and manage their expense transactions. This approach ensures diligent tracking, categorization, and organization of financial data, providing businesses with a comprehensive overview of their expenditures. QuickBooks Online's user-friendly interface and structured navigation contribute to the effective management of financial transactions, supporting businesses in maintaining accurate and organized records for better financial decision-making and reporting.