Existing in thought or as an idea but not having a physical or concrete existence
Answer:
C
Explanation:
The last option would not be good, and the passage does not tell how they work, so not A. There is also no criticism to this passage, so I would think its C
It’s the writers are in complete agreement
C. Not knowing that it was for the last time.
Basically, this bit is foreshadowing Daedalus' and Icarus' last moments together.