Comprehensive and Detailed Explanation From Exact AWS AI documents:
Amazon Q Business is a managed AI assistant designed to:
Allow employees to query internal enterprise data
Provide conversational answers
Respect enterprise security and access controls
AWS guidance positions Amazon Q Business as the solution for internal knowledge discovery and enterprise AI assistance.
Why the other options are incorrect:
Rekognition (A) analyzes images.
Textract (B) extracts text from documents.
Lex (C) builds conversational interfaces but does not provide enterprise data integration out of the box.
AWS AI document references:
Amazon Q Business Overview
Enterprise AI Assistants on AWS
Secure Access to Internal Data with AI