A company has developed a microservices application. It uses a client-facing API with Amazon API Gateway and multiple internal services hosted on AmazonEC2 instances to process user requests. The API is designed to support unpredictable surges in traffic, but internal services may become overwhelmed and unresponsive for a period of time during surges. A solutions architect needs to design a more reliable solution that reduces errors when internal services become unresponsive or unavailable.
Which solution meets these requirements?