The correct answer is A. Si-Yu-Ki.
Si-Yu-Ki is a travelogue written by the Chinese Buddhist monk Xuanzang (602-664) during his pilgrimage to India in the 7th century. It is an invaluable source of information about ancient India, its culture, religion, and history.
The book was originally written in Chinese, but it has been translated into many languages, including English. It is a must-read for anyone interested in ancient India.
The other options are incorrect.
B. Hi-Nu-Si is not a real book.
C. Kitab-e-Hind is a book written by Alberuni, a Persian scholar who visited India in the 11th century. It is also an important source of information about ancient India, but it is not as detailed as Si-Yu-Ki.
D. None of Above is also incorrect.