Amazon CloudFront is a content delivery network (CDN) service provided by AWS. It uses a global network of edge locations to distribute content to users around the world. These edge locations are strategically placed in various geographic regions to act as cache points, allowing users to access content from a location that is physically closer to them. This results in improved performance and reduced latency for content delivery. The correct answer is C, 'Edge locations', as it is the technology used by Amazon CloudFront for content distribution. Options A, 'Amazon VPC', B, 'AWS Local Zones', and D, 'Availability Zones', are not related to the content distribution mechanism of Amazon CloudFront.