A development team needs to implement a method for processing incoming requests to a web service that enables additional validation and transforms the response based on certain business rules before sending it back to the client. What should the team implement to BEST handle this requirement?
Use AWS Lambda to validate and process the requests.
Deploy a web application firewall to validate and transform the requests.
Configure an Elastic Load Balancer (ELB) to handle the request transformations.
Implement response/request transformations using Amazon API Gateway.