Which of the following does Amazon CloudFront use to distribute content to users around the world?

Explanations:

Amazon VPC (Virtual Private Cloud) is used for provisioning a logically isolated section of the AWS cloud where users can launch AWS resources in a virtual network. It does not directly relate to content distribution across the globe.

AWS Local Zones are designed to bring AWS services closer to large populations and industries, but they are not the primary mechanism for content distribution. They complement AWS regions but do not serve as the primary content distribution network.

Edge locations are critical components of Amazon CloudFront, serving as the places where content is cached and delivered to users globally. These locations allow CloudFront to serve requests with low latency by caching copies of content closer to users.

Availability Zones are isolated locations within a region, designed to ensure high availability and fault tolerance. They are not used for distributing content globally like Edge locations are.