Answer: Source Attribution in Knowledge Bases

**Source Attribution in Knowledge Bases** is the correct answer because this feature specifically enables tracking and citing the exact documents used as sources for AI-generated answers. This is crucial for legal teams that require verifiable source documentation for compliance, audit trails, and ensuring the accuracy and reliability of AI-generated responses. **Why other options are incorrect:** - **A) Guardrails for Bedrock**: This focuses on content safety and filtering inappropriate content, not source attribution - **C) Model Evaluation**: This is about assessing model performance and accuracy, not tracking source documents - **D) Reinforcement Learning**: This is a machine learning training method, not a feature for source citation

Author: Ritesh Yadav