A company hosts a website on Amazon EC2 instances behind an Application Load Balancer (ALB). The website serves static content. Website traffic is increasing, and the company is concerned about a potential increase in cost.

• ACreate an Amazon CloudFront distribution to cache state files at edge locations
• BCreate an Amazon ElastiCache cluster. Connect the ALB to the ElastiCache cluster to serve cached files
• CCreate an AWS WAF web ACL and associate it with the ALB. Add a rule to the web ACL to cache static files
• DCreate a second ALB in an alternative AWS Region. Route user traffic to the closest Region to minimize data transfer costs