Which AWS service can a company use to control permissions to AWS services in the cloud?

Explanations:

Amazon EC2 is a service for running virtual servers in the cloud. It does not manage permissions or access controls for AWS services.

AWS Lambda is a serverless compute service that runs code in response to events. It does not handle user permissions or access control to AWS services.

Amazon Elastic Container Service (ECS) is a container management service. While it manages containers, it does not control permissions for AWS services.

AWS Identity and Access Management (IAM) is specifically designed to manage user permissions and access control to AWS services, allowing detailed policy management.