Choose the word or phrase from A to D which has its meaning opposite to the underlined word or words in each…

Analyze the question: This is an antonym question. We need the word that means the opposite of impertinent.

Explain the concept: "Impertinent" means rude, disrespectful, or not showing proper respect (especially to someone older or in authority). For example: "The impertinent boy answered his teacher rudely."

So the opposite must mean polite, respectful, or well-mannered.

Check each option:

• A. subdued means quiet, restrained, or toned down. It is not a direct opposite. Someone can be rude and quiet, or polite and loud, so it doesn't fit exactly.
• B. extravagant means wasteful or excessive, especially with money. It has nothing to do with manners.
• C. courteous means polite, respectful, and well-mannered. This is the direct opposite of impertinent.
• D. promiscuous means having many casual sexual relationships. It is unrelated to rudeness.

Answer: The correct option is C. courteous.

Tip: Break the word down. "Impertinent" comes from "pertinent" (relevant, appropriate) with the negative prefix im-, so it means "not appropriate in behaviour." Its opposites are words like polite, respectful, and courteous. In antonym questions, first find the core meaning of the word, then eliminate options that are about completely different ideas, such as money or morals.