A user is able to set up a master payer account to view consolidated billing reports through:?

Explanations:

AWS Budgets allows users to set budgets and track costs but does not enable consolidated billing.

Amazon Macie is a security service for sensitive data discovery, not related to billing or accounts.

Amazon QuickSight is a data visualization tool, not used for consolidated billing management.

AWS Organizations enables setting up a master account for consolidated billing across multiple accounts.