Final answer:
The nearest synonym for 'evanescent' is 'b) Fleeting', which suggests something that lasts for a very short time.
Step-by-step explanation:
The nearest synonym for the word 'evanescent' is b) Fleeting. The word evanescent describes something that is temporary or lasting for a very short time. The synonyms enduring, lasting, and persistent all imply a sense of duration and hence are antonyms of evanescent.
On the other hand, fleeting means lasting for a brief period, which is in line with the meaning of evanescent. To illustrate, you might say: "The rainbow had an evanescent beauty, disappearing almost as quickly as it had appeared, much like a fleeting moment."