You have a web app named WebApp1. You create a web application firewall (WAF) policy named WAF1. You need to protect WebApp1 by using WAF1. What should you do first? 

Answer options:

A. Deploy an Azure Front Door.
B. Add an extension to WebApp1.
C. Deploy Azure Firewall.

A

Reference: https://docs.microsoft.com/en-us/azure/frontdoor/quickstart-create-front-door