The correct answer is: A. Alberuni
Alberuni was a Persian polymath who was born in Khwarezmia (now Uzbekistan) in 973 CE. He is considered one of the greatest scholars of the Islamic Golden Age. Alberuni was a prolific writer, and his works cover a wide range of subjects, including astronomy, mathematics, physics, geography, history, and religion.
Kitab-Ur-Rahela is a book on India that Alberuni wrote in the early 11th century. The book is a valuable source of information about Indian culture and society at the time. Alberuni’s work is also notable for its objective and unbiased approach to its subject matter.
Fa-Hien and Huin-Tsang were Chinese Buddhist monks who traveled to India in the 5th and 7th centuries CE, respectively. They wrote accounts of their travels that provide valuable information about India at the time. However, their works are not as comprehensive as Alberuni’s Kitab-Ur-Rahela.
I-Tsing was a Chinese Buddhist monk who traveled to India in the 7th century CE. He wrote a book about his travels that is considered one of the most important sources of information about India at the time. However, I-Tsing’s book is not as comprehensive as Alberuni’s Kitab-Ur-Rahela.
In conclusion, the correct answer to the question “The writer of Kitab-Ur-Rahela is :” is A. Alberuni.