A solutions architect is designing a REST API in Amazon API Gateway for a cash payback service. The application requires 1 GB of memory and 2 GB of storage for its computation resources. The application will require that the data is in a relational format. Which additional combination of AWS services will meet these requirements with the LEAST administrative effort? (Choose two.)

1. Amazon EC2
2. AWS Lambda
3. Amazon RDS
4. Amazon DynamoDB
5. Amazon Elastic Kubernetes Services (Amazon EKS)