BuddyPress.org

So what I have to do is enable “Logged in users may register new sites.” under “Registration Settings”?

Right now I have the first option checked:
1- Registration is disabled. (checked)
2- User accounts may be registered.
3- Logged in users may register new sites.
4- Both sites and user accounts can be registered.

Since I’m using BP, and I want my users to be able to create their own blogs, which one should be checked?