Nalanda is located at

Gujarat
Varanasi, Uttar Pradesh
Near Patna, Bihar
Near Bhopal, Madhya Pradesh

The correct answer is C. Near Patna, Bihar.

Nalanda was a Buddhist Mahavihara (university) in the Indian subcontinent. It was one of the most famous educational institutions in the world, and was patronized by the Gupta Empire. The university was destroyed by the Muslim invaders in the 12th century.

The ruins of Nalanda are located in the Nalanda district of Bihar, India. The site is a UNESCO World Heritage Site.

The other options are incorrect. Gujarat is a state in western India. Varanasi is a city in Uttar Pradesh, India. Bhopal is a city in Madhya Pradesh, India.