Correct option is B
Dhampur is a town in Uttar Pradesh known for its sugar industry. The Dhampur Sugar Mills is one of the largest sugar producers in India.
Dalmia Dadri is historically significant in the context of India’s cement industry due to the establishment of the Dalmia Cement Plant, which was one of the earliest cement factories in the country. The plant was set up by the Dalmia family in the early 20th century.
The Chandrapur district is home to Ballarpur Industries (BILT), one of the world's 100 largest and India's largest paper manufacturers.
Bokaro in Jharkhand is home to the Bokaro Steel Plant, one of the largest iron and steel plants in India, operated by the Steel Authority of India (SAIL).
