You have a frequently asked questions (FAQ) PDF file. You need to create a conversational support system based on the FAQ. Which service should you use? 

Answer options:

A. QnA Maker
B. Text Analytics
C. Computer Vision
D. Language Understanding (LUIS)

A

QnA Maker is a cloud-based API service that lets you create a conversational question-and-answer layer over your existing data. Use it to build a knowledge base by extracting questions and answers from your semi-structured content, including FAQs, manuals, and documents. Reference: https://azure.microsoft.com/en-us/services/cognitive-services/qna-maker/