Select the most appropriate synonym for the highlighted word in the given sentence.
The pearls produced in that oyster farm have lost all their lustre.

Correct option is B

The correct synonym of the given word is (b) shine.
Lustre: A gentle sheen or soft glow, especially that of a partly reflective surface. (चमक, आभा)
Example: The diamond lost its lustre over time.
Shine: Brightness caused by the reflection of light. (चमक, तेज)
Example: The car was polished until it shone.
Synonyms: glow, brilliance, shimmer, sparkle
Antonyms: dullness, darkness, dimness, gloom
Meanings of all the other given options:
· (a) Front: The forward-facing part of something (सामना)
· (c) Lustful: Full of sexual desire (कामुक)
· (d) Gloom: Partial or total darkness; a state of depression (अंधेरा, उदासी)