A company is migrating a legacy data processing solution to AWS, deploying it on Amazon EC2 instances within private subnets of a single VPC. The solution utilizes Amazon S3 for object storage, storing both input and output data, and Amazon DynamoDB for maintaining its state. VPC flow logs are collected, and a single NAT gateway is used to enable license registration over the internet via a specific hostname provided by the software vendor. The company observes that the AWS bill surpasses the projected budget, and a network engineer identifies the USE2-NatGateway-Bytes($) usage type as the primary cause of the unexpected cost increase using AWS Cost Explorer. What actions should the network engineer take to address this issue? (Choose two.)