AWS organizes independent Regions, each comprising multiple physically separate Availability Zones connected with low-latency networks and redundant power, which supports resilient architectures is correct because it explains how AWS separates faults and provides redundancy across AZs and Regions so customers can build highly available and fault tolerant systems.

Regions are isolated from each other and each Region contains multiple Availability Zones that are distinct facilities with independent power networking and low latency links which allows architects to deploy services across AZs for high availability and to replicate across Regions for disaster recovery.

The infrastructure is composed of subnets and VPCs that serve as the primary physical isolation boundaries for availability is incorrect because subnets and VPCs are logical networking constructs and they do not provide the physical separation that Availability Zones and Regions deliver.

High availability is primarily delivered by distributing content through Amazon CloudFront edge locations worldwide is incorrect because CloudFront improves latency and caching at the edge and it does not replace multi-AZ or multi-Region architectures for compute and data fault tolerance.

Customers can choose individual data centers within Regions to deploy workloads in different facilities for failover is incorrect because AWS does not permit selection of specific data centers and customers achieve facility-level resilience by deploying across Availability Zones.

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