Which system mandates that a line of business be included on accounting journals when a specific cost center is selected?

The correct choice is Workday because it incorporates functionalities that ensure compliance and accuracy in accounting practices, including the requirement for a line of business to be noted on accounting journals when a particular cost center is selected. This feature is part of Workday's robust financial management capabilities, which facilitate better tracking and management of financial data.

In Workday, when transactions are recorded against specific cost centers, the system automatically associates them with the appropriate line of business. This association helps organizations maintain clarity in financial reporting and enhances the ability to analyze costs against various departments or projects.

This functionality is aligned with best practices in financial management and reporting, ensuring that every financial entry is properly categorized, which alleviates errors in accounting and supports strategic decision-making processes.