Correct option is A
The correct antonym of the given word is (a) facilitate.
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Hamper:
It means to hinder, obstruct, or make progress difficult. It is commonly used to show an action that slows down or blocks movement, growth, or development.
(Hindi meaning: बाधा डालना, रुकावट पैदा करना)
Example: Poor weather conditions hampered the rescue operations.
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Facilitate:
It means to make an action or process easier or smoother. It directly expresses the opposite idea of removing obstacles rather than creating them.
(Hindi meaning: आसान बनाना, सुविधा प्रदान करना)
Example: New policies were introduced to facilitate trade between the two countries.
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Synonyms (Hamper): hinder, obstruct, impede, block.
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Antonyms (Hamper): facilitate, assist, help, promote.
Meanings of all the other given options:
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(b) Hasten: To speed up or make something happen sooner.
(Hindi: तेज़ करना)
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(c) Obstruct: To block or stand in the way of something (same meaning as hamper).
(Hindi: अवरोध करना)
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(d) Welcome: To greet gladly or accept willingly.
(Hindi: स्वागत करना)
Thus, the word opposite in meaning to hamper is facilitate.