Explanation

In AWS global infrastructure:

• AWS Regions are geographic areas that contain multiple Availability Zones
• Availability Zones (AZs) are physically separate data centers within a Region that contain one or more discrete data centers
• Edge Locations are endpoints for AWS CloudFront (CDN) that cache content closer to users
• Regional Edge Caches are larger CloudFront locations that sit between your origin server and the edge locations

The correct statement is that Availability Zones contain multiple data centers because:

• Each Availability Zone is designed as an isolated failure domain
• AZs consist of one or more discrete data centers with redundant power, networking, and connectivity
• This design provides high availability and fault tolerance within a Region

The other options are incorrect:

• Edge locations do NOT contain AWS Regions
• AWS Regions contain Availability Zones, not Regional edge caches
• Data centers do NOT contain edge locations (edge locations are separate CDN endpoints)