The answer is the first one. it gives u a hint because he THOUGHT he saw something and a phantasm is something you see in your mind.
All the other sentences use the word incorrectly
B) The fearsome unstoppable dog barked at us viciously needs a comma after fearsome and before unstoppable
Answer:
What is the question? and what are the lines
Answer:
The author leaves some areas blank or they dont give information to fill the blank
Explanation:
I'm sorry i don't know what kind of argumentaive essay you are talking about i think it would be better if you has a topic?