I believe it's the timeless of the message because, it depends on how much you've written. For example, Amanda wrote a 7 paragraph long essay, and took at least 2 1/2 hours to read it. This is an example to prove that no matter how much you've written your time to read cannot always be timeless!!! Hope this helps!!!
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.
Answer:
introduction paragraph, the thesis statement, body paragraphs, and lastly conclusion
