Choose the one-word substitution from the options given below.
A group of persons working on a ship or aircraft.

Correct option is D

The correct one-word for the given group of words is (d) Crew.
• Explanation: A crew is a group of people who work on a ship or an aircraft.
• Correct word: Crew (हिंदी अर्थ: जहाज या विमान पर कार्यरत दल)
• Use in a sentence: The crew prepared the ship for departure.
• Meanings of all the other given options:
· (a) Staff: कर्मचारी
· (b) Scar: निशान
· (c) Concert: संगीत कार्यक्रम
· (d) Crew: जहाज या विमान पर काम करने वाला समूह