Oil refinery
Textile mills
Electronics manufacturing
Automobile production
Answer is Wrong!
Answer is Right!
The correct answer is: Oil refinery.
Barauni is a city in the Indian state of Bihar. It is located on the banks of the Ganges River, about 100 kilometers (62 mi) north of Patna, the state capital. Barauni is known for its oil refinery, which is one of the largest in India. The refinery was built in the 1960s and is operated by Indian Oil Corporation. It is a major source of employment for the people of Barauni.
The other options are incorrect. Textile mills are not a major industry in Barauni. Electronics manufacturing and automobile production are also not major industries in the city.