The correct answer is: A. Gaya
Gaya is a city in the Indian state of Bihar. It is the headquarters of Gaya district and Gaya division. The city is located on the banks of the Phalgu River, about 100 kilometers (62 mi) south of Patna, the state capital. Gaya is a major pilgrimage center for Hindus and Buddhists. The city is home to several important Hindu temples, including the Mahabodhi Temple, which is a UNESCO World Heritage Site. Gaya is also home to the Bodh Gaya University, which is a major center for Buddhist studies.
The city is surrounded by five hills: Ratnagiri, Shikharji, Vipulagiri, Vaibhargiri, and Nagarjuni Hill. Ratnagiri is the highest hill and is home to the Mahabodhi Temple. Shikharji is the second highest hill and is home to the Vishnupad Temple. Vipulagiri is the third highest hill and is home to the Vishwa Shanti Stupa. Vaibhargiri is the fourth highest hill and is home to the Sujata Kund. Nagarjuni Hill is the fifth highest hill and is home to the Pandav Guha.
The five hills of Gaya are considered to be sacred by Hindus and Buddhists. The hills are said to be the abode of the gods and are believed to be a place of great spiritual power. The hills are also a popular tourist destination.