Correct Answer: (c) Bihar
Note: Patna is the capital and largest city of Bihar in India. Patna was founded in 490 BCE by the king of Magadha. Ancient Patna, known as Pataliputra, was the capital of the Magadha Empire during the rule of Haryanka, Nanda, Mauryan, Shunga, Gupta and Pala dynasties.