Correct option is D
The correct one-word substitution for "a formal resignation and renunciation of powers" is (d) abdication. • "
Abdication" specifically refers to the act of formally giving up power, typically used in the context of monarchs stepping down from their throne. • Correct word: त्यागपत्र (Abdication in Hindi) • Use in a sentence: The king's abdication marked the end of an era for the kingdom. •
Meanings of the given other options: •
Fauna - The animals of a particular region, habitat, or period. •
Regalia - The emblems or insignia of royalty, such as crowns, scepters, and robes. •
Axiom - A statement or proposition that is regarded as accepted, established, or self-evidently true without controversy.