The district bordering the state of Maharashtra:

Bidar
Belagavi
Vijayapura
Uttara Kannada

The correct answer is: B) Belagavi

Belagavi is a district in the Indian state of Karnataka. It is located in the northern part of the state and is bordered by the states of Maharashtra and Goa to the north, the state of Andhra Pradesh to the east, and the districts of Dharwad, Haveri, and Uttara Kannada to the south and west. The district has a population of over 5 million people and is the second most populous district in Karnataka after Bangalore Urban.

The district headquarters is the city of Belagavi. Other major towns in the district include Bagalkot, Raichur, and Yadgir. The district is home to a number of historical and cultural sites, including the ruins of the ancient city of Vijayanagara, the temples of Hampi, and the forts of Belgaum and Raichur.

The district is also home to a number of industries, including the sugar industry, the textile industry, and the engineering industry. The district is also a major agricultural producer, with a number of crops grown in the district, including rice, sugarcane, and cotton.

The district is well-connected by road and rail to other parts of the state and the country. The district is also served by a number of airports, including the airport at Belagavi and the airport at Hubli.

The district is a popular tourist destination, with a number of tourist attractions, including the ruins of the ancient city of Vijayanagara, the temples of Hampi, and the forts of Belgaum and Raichur. The district is also home to a number of wildlife sanctuaries, including the Anshi National Park and the Dandeli Wildlife Sanctuary.

The district is a beautiful and culturally rich place with a lot to offer visitors. If you are looking for a place to experience the history and culture of India, the district of Belagavi is a great place to visit.

The other options are incorrect because they are not districts in the state of Karnataka.