How should the Salesforce admin troubleshoot this issue?

Unauthenticated users are unable to some articles on a Universal Containers Community. Universal Containers have articles associated to the public knowledge base channel and topics associated to the correct data categories.

How should the Salesforce admin troubleshoot this issue? Select one or more of the following:
A . Check the article type permissions on the guest user profile
B . Enable public access for the Community in setup and the Guest user profile
C . Create a new data category specifically for guest users to display articles
D . Create a featured topic in the Community builder to display articles

Answer: A