Mrs. Mallards excitement at the prospect of a new life
I believe that the general notation for your subtopics in an outline is B. capital letters.
Roman letters are used for topics, capital letters for subtopics, and the rest for supporting points.
Preposition, adverb, preposition, preposition
I would have to say and epic poem, such as the Odyssey, Beowulf, the Song of Roland , Paradise Lost, and my favorite, the Iliad.