Which AWS service or tool can the company use to consolidate the billing for these two accounts?

Explanations:

AWS Systems Manager is primarily used for managing AWS resources and automating operational tasks. It does not provide billing consolidation features.

AWS Organizations allows users to consolidate billing across multiple AWS accounts, making it possible to manage and streamline billing for multiple accounts under a single payment method.

AWS License Manager is designed to manage software licenses across AWS and on-premises environments. It does not handle billing or account consolidation.

Cost Explorer helps users analyze and visualize their AWS spending but does not consolidate billing across multiple accounts. It is used for reporting rather than managing billing across accounts.