C, i believe cuz ethos is all about boosting your credibility
I guess it would be easier for us to define the disadvanatges if you tell us about the technologies you want to mention. For example, it is hard to think of technology and nature together but even advances like Artificial Intelligence (AI) that could not be further removed from the natural world are helping conservation efforts. Well, at least I tried to answer your question. More help you can get if you check the tips at Prime Writings site. Good luck with it!
Shakespeare-online.com/plays/hamlet/hamletintroduction.html
Answer:
It shows the speaker's boredom.
Explanation:
Repeating emphasizes the boredom of waiting.
