Answer: AWS Identity and Access Management (IAM)

## Explanation AWS Identity and Access Management (IAM) is the correct service for creating and modifying AWS user permissions. Here's why: - **AWS IAM** is specifically designed for identity and access management, allowing administrators to: - Create and manage AWS users and groups - Define permissions using policies - Control access to AWS services and resources - Manage authentication and authorization - **AWS Config** is a service for assessing, auditing, and evaluating AWS resource configurations - **AWS CloudTrail** is a service for logging API calls and account activity - **AWS Key Management Service (KMS)** is for creating and managing encryption keys IAM provides the centralized access control mechanism for AWS, making it the appropriate service for user permission management.

Author: Ritesh Yadav