Which AWS service enables serverless computing?

AWS Lambda is the service that enables serverless computing. It allows developers to run code in response to events without provisioning or managing servers. With Lambda, users only pay for the compute time consumed when code is executed, eliminating the need for constant server management and reducing costs associated with idle resources. This service is particularly beneficial for running applications in a highly scalable manner, as it automatically adjusts to match the number of incoming requests.

The other options do not provide serverless capabilities in the same way. Amazon EC2 requires users to provision and manage virtual servers, while Amazon RDS provides managed database services that still require the underlying infrastructure to be managed, albeit by AWS. Amazon S3 is a storage service and does not offer compute services. Thus, AWS Lambda stands out as the key service for achieving serverless architecture on AWS.