The correct answer is: Crew.![image](//cdn. Points**

• The word "Crew" refers to a group of people who work together, particularly on a ship or an aircraft. (जहाज़ या विमान पर काम करने वाले लोगों का समूह)

• Example: The ship's crew worked tirelessly to navigate through the storm.

• Explanation: The correct word here is "Crew," which specifically denotes the team of individuals responsible for operating a ship or aircraft. (समूह जो जहाज या विमान चलाने का कार्य करता है)

• Example: The airline crew ensured that all passengers were comfortable during the flight.

• Hence, we can infer that the correct one-word substitution for "A group of persons working on a ship or aircraft" is "Crew."

Therefore, the correct answer is: Crew.![image](//cdn. Information**

Here are the other options explained along with their Hindi meanings and example sentences:

• Scar (दाग): A mark left on the skin or a surface after a wound or damage.

• Example: The scar on his hand was a reminder of the accident he had years ago.

• Concert (संगीत समारोह): A musical performance given in public.

• Example: We attended a live concert by our favorite band last weekend.

• Staff (कर्मचारी): The group of people who work for an organization.

• Example: The school staff organized a farewell party for the graduating students.

• None of the above: This option is incorrect as the correct answer is "Crew."