Option c is the correct answer. The correct answer is A - 3, B - 4, C - 1, D - 2. Al-beruni wrote the book called Tarikh-i-Hind in Arabic language . He described the social, political and economic condition of India. He talked about Mahmud Ghaznavi's invasion , educational policies, economic life, revenue system etc. He also described Judiciary and Rule of law in the state at that time. Amir Khusrau was a Sufi musician, poet, and scholar in medieval India. He was a prolific classical poet associated with the royal courts of more than seven rulers of the Delhi Sultanate. He wrote Tarkh-i-Alai, which contains the details of the first few years of Sultan Alauddin Khilji.. He adopted Indian themes and also the first muslim writer who used Hindi words in tarkh-I-alai. The Rihla or travels is a book by Ibn Battuta is an amazing travelogue that tells us about his journeys for over 30 years. Rihla was written in Arabic. He was Qazi (Judge) in the royal court by the king Mohammad Bin Tughlaq. Tabaqat-i Nasiri was written by Minhaj-i-Siraj Juzjani and completed in 1260. It is an elaborate history of the Islamic world written in Persian. Minhaj dedicated his work 'Tabkat-e-Nasiri' to the ruler of the Ghulam dynasty, Nasiruddin Mahmud.