For item C, I went to Appearance -> Menus, and I saw “Original: Home base”, there is no place to update that link. any screen shot on how to fix this would be helpful
1. Home link is generated automatically to your home page. If you want to set some custom link you need to add a new item taken from left bar on this page and called “Custom link”.
2. You need to clear “Description” fields for both menu items to remove empty dropdowns.