Answer: Amazon QuickSight

## Explanation **Amazon QuickSight** is the correct choice because: - **Purpose-built for BI**: Amazon QuickSight is specifically designed for business intelligence and data visualization - **Interactive dashboards**: It allows creation of interactive dashboards with drill-down capabilities - **Pay-per-session pricing**: QuickSight uses a pay-per-session model with no upfront costs or long-term commitments - **Integration with Redshift**: It seamlessly integrates with Amazon Redshift for direct data analysis - **Cost-effective**: The pay-per-session model means you only pay when users actually access the dashboards **Why not the others**: - **Amazon CloudWatch**: Primarily for monitoring AWS resources and applications, not for business intelligence dashboards - **AWS Health Dashboard**: Shows AWS service health and personal account health, not for custom business intelligence - **AWS Service Catalog**: Manages approved IT services, not for data visualization or dashboards Amazon QuickSight's pay-per-session pricing model perfectly matches the requirement of no upfront costs while providing the interactive dashboard capabilities needed for business intelligence solutions.

Author: Ritesh Yadav