Asked by AKSHAY GURU VARADHARAJAN · SRI CHAITANYA TECHNO SCHOOL, JAYANTI NAGAR.
Answer: A. Challenge
The correct antonym is Challenge.
Abdicate means to give up a position of power or a responsibility (like a king leaving his throne).
Challenge is an antonym because it means to claim, contest, or fight for a position rather than surrendering it.
Abandon, Relinquish, and Vacate are all synonyms of abdicate, as they all involve leaving or giving something up.
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