Chaudhary Charan Singh International Airport
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Chennai
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Lucknow
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Varanasi
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Kanpur
B
Correct answer
Explanation
Chaudhary Charan Singh International Airport serves Lucknow, Uttar Pradesh, making option B correct. It is named after the former Prime Minister of India and is UP's primary international airport, not in Chennai, Varanasi, or Kanpur.