Select the most appropriate option for the given blank.
They need to ______________ their own business; my life is not their concern.

Correct option is A

The correct option is mind.
Explanation: The phrase "mind your own business" is an idiomatic expression that means to focus on one’s own affairs and not interfere in others’ matters. "Mind" is used in this context to mean "pay attention to" or "concern oneself with." Rule explanation in Hindi: "Mind" का उपयोग इस वाक्यांश में "अपना काम करो" का अर्थ व्यक्त करने के लिए किया जाता है। Example: Please mind your own business and stop interfering in mine.
Meanings of the other options:
· Mend: (ठीक करना) Means to repair or improve something. Example: He mended the broken chair.
· Hit: (मारना) Means to strike or touch something forcefully. Example: He hit the ball out of the park.
· Hint: (संकेत) Refers to an indirect suggestion or clue. Example: She dropped a hint about her upcoming promotion.