The letter "Y" is considered both a vowel and/or a consonant.
An abandoned office would most likely be the best one. Just by hearing the word abandoned, it can give people chills because they don't expect what that abandoned office have. In a fiction story, it might have zombies or something.
Answer:
A: Antithesis: he is using contrasting ideas to emphasize the uncertainty of space exploration
Explanation:
Just a tip, look for the opposites, he's used antonyms to exaggerate his thoughts on the knowledge mankind had on space.
Hope this helps! :D
