Which fully managed AWS service assists with the creation, testing, and management of custom Amazon EC2 images?

Explanations:

EC2 Image Builder is a fully managed service that simplifies the process of creating, testing, and managing Amazon EC2 images (AMIs). It automates the building, patching, and validation of AMIs, making it easier to manage and maintain custom images.

An Amazon Machine Image (AMI) is a template used to create EC2 instances, but it is not a fully managed service for image creation and management. AMIs can be created using various methods, but they do not provide the automation and management capabilities that EC2 Image Builder offers.

AWS Launch Wizard is a service designed to simplify the deployment of AWS resources for specific applications. While it assists in launching resources, it does not focus on the creation and management of EC2 images.

AWS Elastic Beanstalk is a platform as a service (PaaS) for deploying and managing applications in the cloud. It is not related to the creation or management of EC2 images, thus not serving the purpose described in the question.