Option d is the correct answer. Fa Hien was a Chinese Buddhist monk and traveler who visited India between 399 and 414 CE. He was one of the first Chinese pilgrims to record his journey to India and bring back Buddhist scriptures and relics to China. He wrote a travelogue called A Record of Buddhist Kingdoms, which describes the geography, culture, religion, and society of India and other countries he visited. Fa Hien has mentioned a hospital at Patliputra, the capital of the Gupta Empire, which was endowed by benevolent citizens. Fa Hien's account of the hospital at Patliputra is one of the earliest records of a public health institution in ancient India. It shows the advanced level of medical science and social service in India during the Gupta period. He recorded that the hospital was well-maintained and had a large number of beds. The patients were treated free of charge." Important Tips Important facts about Fa-Hien: Fa-Hien was a Chinese pilgrim who visited India during the period of Chandragupta II. He came to India for his religious mission. He stayed in India for about 10 years, from 399 CE to 411 CE. He visited many pilgrimage places in India and keenly observe many places. According to him, Magadha and Pataliputra were prosperous and flourishing cities respectively. People were living a prosperous life and used to practice different religions. Fa-Hein also mentioned the Penal code and the images of Indian gods and goddesses on the coins here.