A solutions architect designs a demo environment that runs on Amazon EC2 instances in an Auto Scaling group behind an Application Load Balancer (ALB). Traffic rises significantly during working hours and the environment is not required to run on weekends. Which combination of actions should the architect take to ensure the system can scale to meet demand? (Choose two.)

A target tracking scaling policy based on CPU utilization ensures the Auto Scaling group dynamically adds or removes EC2 instances to maintain a desired average CPU load, effectively handling fluctuating demand during working hours. Scheduled scaling allows the Auto Scaling group's minimum, maximum, and desired capacities to be set to zero for weekends, stopping all instances and saving costs when the environment is not needed. It then reverts to default values for the workweek, ensuring availability. Using AWS Auto Scaling to adjust ALB capacity is incorrect because ALBs automatically scale to handle traffic. Scaling the VPC internet gateway is unnecessary as it is a managed service that scales automatically. Launching instances in multiple regions is not required for a demo environment that primarily experiences demand during working hours and is not needed on weekends.