The correct answer is A. Mahmud of Ghazni.
Al-Biruni was a Persian polymath who was born in Khwarazm (now Uzbekistan) in 973 CE. He was a mathematician, astronomer, geographer, historian, alchemist, and linguist. He is best known for his work on India, which he visited in the early 11th century.
Al-Biruni came to India with Mahmud of Ghazni, a Turkic ruler who invaded India several times between 1001 and 1027 CE. Mahmud was a great patron of learning, and he invited al-Biruni to accompany him on his campaigns. Al-Biruni spent several years in India, and he wrote extensively about the country’s history, culture, and religion.
Al-Biruni’s work on India is a valuable source of information about the country in the 11th century. He was the first Muslim scholar to write a comprehensive account of India,
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