I would say c. timelessness of the message.
Why? Because:
a) your piece of writing has to have a message - if there is no message, there is no point in writing it.
b) you have to have an intended audience you are writing for - it is not the same writing something for your friends, little brother/sister, professor or a potential employer.
c) the format of the message is important because of the previous factor and because the format usually affects the reception of the writing; nobody will be interested in your text if you write it without commas, fullstops, capitalized letters at the beginning of the sentence, or for example, without spaces between the words because it would be too confusing.
While, the timelessness is not as important. You are writing it for a special purpose now, and if it is good it might become timeless. But there are probably many great works (poems, scientific papers, novels, etc.) that were lost or forgotten, but that does not mean they were not great or significant.
Hope my answer is not too confusing :)
Strong source information and a reporting verb ig
Have a great day
Argumentative essays are supposed to be a response disagreeing with someone's opinion. you must first state what their stance is and what your stance is in the first paragraph. in the middle paragraphs state why you think your opinion is the correct one, and include statistics. in the closing paragraph restate your stance.
Explanation:
Support Detail/example/data/explanation - Explain how an event led to an adventure or quest.