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An ecommerce company requires a serverless architecture for order processing with manual approval steps. The system must integrate AWS Lambda functions and manage data across EC2, containers, and on-premises servers with minimal operational overhead. Which AWS service is best suited for this scenario?
Explanation:
The correct answer is A: AWS Step Functions. AWS Step Functions is a fully managed service that makes it easy to coordinate the components of distributed applications and microservices using visual workflows. It is designed to integrate multiple AWS services, including Lambda, EC2, and on-premises servers. This makes it ideal for building complex order-processing tasks with manual approvals and other orchestration needs, all with minimal operational overhead.