Option b is the correct answer. The Shahnama, also known as the Book of Kings, is an epic poem written by the Persian poet Firdausi between c. 977 and 1010 CE. It is a monumental work that narrates the mythical and historical past of the Persian Empire from the creation of the world to the Muslim conquest in the seventh century. The Shahnama is a celebrated literary masterpiece and a key part of Persian culture and identity. Important Tips Ziauddin Barani (1285-1358 CE), an Indian Muslim thinker during the Delhi Sultanate, notably under Muhammad bin Tughlaq and Firuz Shah's reigns. Renowned for "Tarikh-i-Firoz Shahi," covering Ghiyath al-Din Tughluq to Firoz Shah Tughluq's early years, and "Fatwa-i-Jahandari," advocating Muslim ruler ideals. He highlighted a Muslim hierarchy, modeled on Sassanid Iran, aimed at securing aristocracy through birth. His writings, influenced by religious and political themes, captured the intersection of religion and government.