The outline format is Marilyn's preferred note-taking method for her history class, and she just marked her first point using an uppercase A. Then, she wants to add a sentence to elaborate on the point she just made without introducing a whole new idea. What character or symbol should she use to mark the new supporting sentence

From the glass menagerie: "suspended in the mist over berchtesgaden, caught in the folds of chamberlain's umbrella." who was chamberlain? a.paul chamberlain: tom's father b.neville chamberlain: prime minister of great britain. c.pedro chamberlain: amanda's drunkard husband d.cornelius chamberlain: gentleman caller for laura