I think the answer is opera
The correct answer should be A. subdivisions
Usually, they are split into numbers for the highest and broadest rank, then capital letters for subdivisions, and then lower case letters for the lowest place in the hierarchy.
B) Thus Fortune with a light / Turn of her wheel brings men from joy to sorrow is the answer
That ice cube is intensely icy as it itches it's way melting down.
(Thought of this real quick sorry if it sounds a bit weird.)