You need to add a new topic to your Power Virtual Agents (PVA) chatbot. 
You decided to extract data from a web page and documents. 
Please select all correct statements about a topic extraction.

Answer options:

A.You need to provide a secure URL on the “Suggest topics” screen
B.You can upload documents to the PVA portal for a topic extraction
C.You need to provide a full name with an extension in the URL for a PDF document
D.After a topic extraction, the PVA portal automatically adds a new topic to your bot
E.You need to provide login credentials for a topic extraction if the URL requires you to log in

Correct Answers: A and C 
The Power Virtual Agents (PVA) portal provides functionality to extract topics from online websites and documents. "Suggest topics" service (Number 1) uses Cognitive AI for automatic content extraction. When it is done, the service presents topics for the user`s review. Users can review and add the topics to the chatbot. 

For more information about Power Virtual Agents topics extraction, please visit the below URL: 

https://docs.microsoft.com/en-us/power-virtual-agents/advanced-create-topics-from-web