Correct option is B
The correct one-word substitute for the given phrase is "Aviary."
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Explanation: An aviary is a large cage, building, or enclosure for keeping birds safely. (Hindi: पक्षीशाला)
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Example: The zoo recently constructed a new aviary to house exotic birds.
Meanings of the given options:
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Zoo: A place where animals are kept and displayed to the public. (Hindi: चिड़ियाघर)
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Sanctuary: A protected area for animals or birds. (Hindi: अभयारण्य)
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Hive: A structure for keeping bees. (Hindi: मधुमक्खी का छत्ता)