If you’ve inherited a site to look after that was set up by someone else, it’s quite possible that you don’t know exactly what you’re dealing with.
There are three ways to have a WordPress website or blog.
If your web site address looks like this: “yoursitename.wordpress.com” then you have (1)
If your web site address looks like this: “yoursitename.com” (or .org, .biz, .net etc) and when you log in to your
dashboard, you have a “Plugins” option in the left side menu, then you have (3)
Otherwise, you have (2)