AWS Audit Manager is the correct answer because it is specifically designed to help you continuously audit your AWS usage to simplify how you assess risk and compliance with regulations and industry standards.

Key features of AWS Audit Manager:

• Automates evidence collection for compliance frameworks like ISO, SOC, and PCI
• Continuously monitors AWS resource configurations
• Maps collected evidence to compliance requirements
• Provides pre-built frameworks for common compliance standards
• Simplifies audit preparation and evidence gathering

Why other options are incorrect:

• AWS Config: Monitors and records AWS resource configurations but doesn't specifically manage audits or evidence collection for compliance frameworks
• AWS CloudTrail: Records API calls and account activity for governance, compliance, and auditing, but doesn't organize evidence for specific compliance frameworks
• AWS Inspector: An automated security assessment service that helps improve security and compliance but doesn't manage audit evidence collection

AWS Audit Manager helps reduce the manual effort of collecting evidence and preparing for audits by automating the process and providing a centralized view of compliance status.