Answer: AWS Artifact

AWS Artifact is the correct service for downloading compliance reports from third-party auditors. It provides on-demand access to AWS security and compliance documents, including reports from auditors like SOC, PCI, ISO, and others. AWS Lambda is a serverless compute service, AWS Trusted Advisor provides best practice recommendations, and AWS Audit Manager helps automate evidence collection for compliance audits, but only AWS Artifact directly provides downloadable compliance reports from third-party auditors.

Author: Ritesh Yadav