The DevOps team at a leading SaaS company is planning to release the major upgrade of its flagship CRM application in a week. The team is testing the alpha release of the application running on 20 EC2 instances managed by an Auto Scaling group in subnet 172.20.0.0/24 within VPC X with CIDR block 172.20.0.0/16. The team has noticed connection timeout errors in the application logs while connecting to a MySQL database running on an EC2 instance in the same region in subnet 172.30.0.0/24 within VPC Y with CIDR block 172.30.0.0/16. The IP of the database instance is hard-coded in the application instances. As a Solutions Architect Professional, which of the following solutions would you recommend to the DevOps team to solve the problem in a secure way with minimal maintenance and overhead? (Select two)