The correct answer is D. Jamshedpur.
Jamshedpur is a city in the Indian state of Jharkhand. It is the headquarters of East Singhbhum district and the third-largest city in the state. Jamshedpur is known for its steel industry and is home to Tata Steel, one of the largest steel companies in the world.
The other options are incorrect. Darbhanga is a city in the Indian state of Bihar. It is the headquarters of Darbhanga district and the second-largest city in the state. Gaya is a city in the Indian state of Bihar. It is the headquarters of Gaya district and one of the oldest cities in India. Hazaribag is a city in the Indian state of Jharkhand. It is the headquarters of Hazaribag district and is known for its natural beauty.