Option b is the correct answer Firuz Tughluq was the third ruler of the Tughlaq dynasty and ruled from 1351 to 1388 . He is known for his architectural and irrigation projects, as well as his efforts to promote social welfare and religious tolerance. Ghiyas ud-Din Balban was a powerful ruler of the Delhi Sultanate from 1266 to 1287 . He is known for his strict and authoritarian rule and his efforts to centralize power in the Sultanate. Nauroz, the Persian New Year marking the arrival of spring, was instituted by Ghiyas ud din Balban. Subsequently, Mughal Emperor Aurangzeb terminated the observance of this festival. Alauddin Khilji was the ruler of the Khilji dynast from 1296 to 1316. He is known for his military conquests and administrative reforms, including the introduction of the market control system. He created a separate department called Diwan-i-Riyasat under an officer called Naih-i-Riyasat. Its primary function was to implement the economic regulations issued by the Sultan and control the markets and prices. Jahangir was the fourth Mughal emperor of India and ruled from 1605 to 1627 . His reign was known for its cultural and artistic achievements, and he was a patron of the arts. Jahangir received Sir Thomas Roe, an English ambassador sent by King James I, at his court. Sir Thomas Roe's visit aimed to establish trade relations between England and the Mughal Empire.