Answer: Yes, yes, yes very well observed.
The correct answer for this question is this one: "<span>headings." </span>Roman numerals indicate the general idea, then it breaks to capitalized letters, then integers, then lower case letters. Basically, Roman numerals can also mean the main idea of the whole topic.
(The song's tune is described in the novel as sounding like a combination of "La Cucaracha" and "Oh My Darling)
