Universal Containers plans to use person accounts for the external consultants. They need to allow their consultants to register using the Community. How can a Salesforce admin enable this capability in the Community using configuration?
Select one or more of the following:

Universal Containers creates a Napili template -based Community for their customers. Due to the company's large knowledge base, the VP of Support is concerned about showing a long list of articles to members when they select a Topic. The list must only contain ten articles. Which standard functionality should a Community Manager use to accomplish this task?