Your answer is orthography
Answer: It means there is an end to everything, nothing is permanent and nothing is forever.
Explanation: Every single living organism has a beginning and an end, it's only a matter of time. Just like the day we were born; we will surely die one day and every single riches and fortunes we have saved up becomes meaningless to us (the dead don't use money), Only our kind heartedness, our charity and everything good we did during our lifetime becomes valuable to us, all other things are vanity and meaningless.
I would choose the last choice, D. Adverbial.
Adverbial phrases include two or more words that serve as adverbs. So "in an hour or two" can be classified as an adverb phrase.
D because a literal word or literal interpretation is using the words exactly as they seem, no metaphors and very basic.