Correct option is A
The correct antonym of the given word is (a)
Despair.
Hope: A feeling of expectation and desire for something to happen. (आशा)
Example:
We all hope for a better future.
Despair: The complete loss of hope. (निराशा)
Example:
He was filled with despair after losing his job.
Synonyms: faith, optimism, expectation, aspiration
Antonyms: despair, hopelessness, gloom, pessimism
Meanings of all the given options:
Despair: Loss of hope (निराशा)
Promise: A declaration that something will happen (वादा)
Craving: A powerful desire for something (लालसा)
Fantasy: Imaginative or unrealistic idea (काल्पनिक कल्पना)