Synonym of EPHEMERAL

Answer: Option C

Unreal : imaginary or illusory.
Mythical : occurring in or characteristic of myths or folk tales.
Short-lived : living or lasting only a little while.
Artificial : made or produced by human beings rather than occurring naturally, especially as a copy of something natural.
Ephemeral : lasting for a very short time.

Synonym of Ephemeral is Short-lived