By using CloudFront, the website can leverage the global network of edge locations to cache and deliver the performance reports to users from the nearest edge location, reducing latency and providing fast response times. Amazon S3 serves as the origin for the files, where the reports are stored.
Option B is incorrect because AWS Lambda and Amazon DynamoDB are not the most suitable services for serving downloadable files and meeting the website demands globally.
Option C is incorrect because using an Application Load Balancer with Amazon EC2 Auto Scaling may require more infrastructure provisioning and management compared to the CloudFront and S3 combination. Additionally, it may not provide the same level of global scalability and fast response times as CloudFront.
Option D is incorrect because while Amazon Route 53 is a global DNS service, it alone does not provide the caching and content delivery capabilities required for serving the downloadable reports. Internal Application Load Balancers do not address the global scalability and caching requirements specified in the scenario.