Correct option is B
The correct synonym of the given word is (b) Toil.
Labour: Intense physical or mental effort, usually involving hard work. (Hindi: श्रम)
Example: The workers laboured for hours to complete the project.
Toil: Hard and continuous work involving a lot of effort. (Hindi: कठिन परिश्रम)
Example: The farmers toiled in the fields from dawn till dusk.
Synonyms: Work, effort, drudgery, sweat.
Antonyms: Ease, relaxation, idleness, leisure.
Meanings of other options:
· (a)
Mesh: A network-like structure (जाल)
· (c)
Dalliance: A casual romantic or non-serious involvement (छेड़छाड़)
· (d)
Relaxation: The state of being free from tension or work (आराम)