A company’s application runs on Amazon EC2 instances behind an Application Load Balancer (ALB). The instances run in an Amazon EC2 Auto Scaling group across multiple Availability Zones. On the first day of every month at midnight, the application becomes much slower when the month-end financial calculation batch runs. This causes the CPU utilization of the EC2 instances to immediately peak to 100%, which disrupts the application. What should a solutions architect recommend to ensure the application is able to handle the workload and avoid downtime?

• AConfigure an Amazon CloudFront distribution in front of the ALB.
• BConfigure an EC2 Auto Scaling simple scaling policy based on CPU utilization.
• CConfigure an EC2 Auto Scaling scheduled scaling policy based on the monthly schedule.
• DConfigure Amazon ElastiCache to remove some of the workload from the EC2 instances.