option d is the correct answer. Sikandar Lodi, the Sultan of the Delhi Sultanate, is credited with founding the city of Agra and elevating it to the status of the capital during his rule. He transferred the capital from Delhi to Agra in the year 1506. Agra's central location, defensibility due to the Yamuna River, prosperity from trade, and aesthetic charm compared to Delhi prompted Sikandar Lodi to shift the capital in 1506 for strategic advantages and better governance. This decision by Sikandar Lodi marked Agra's significance as a political and administrative center. Subsequently, Agra continued to be a prominent city in the region, and its significance further grew during the Mughal era. Important Tips Sikander Lodi (1489-1517 CE): Sikandar Lodi's Reign and Administration: Succeeded his father Bahlul Lodi in 1489 CE. Strengthened governance after inheriting a challenging situation from his father. Focused on justice and punished those involved in corruption. Ensured safety on highways and controlled commodity prices. Encouraged higher education, inviting scholars, philosophers, and poets, leading to translation of Sanskrit works into Persian. Promoted Persian learning among Hindus, fostering cultural exchange. Contributions and Achievements: Patronized arts, literature, and music; wrote Persian verses as Gulrukhi. Supported the musical instrument shenai and established a musical note named Lahjat-I-Sikander shahi. Founded Agra, enhancing it with impressive forts and structures. Expanded territory by annexing Jaunpur, Chanderi, Dholpur, and Gwalior. Empathetic ruler, heard complaints of the marginalized, and delivered impartial judgments. Extensively planned and administered his kingdom, maintaining a strict watch on officials. Religious Policies: Employed strict Sunni orthodoxy to establish his Islamic credentials due to his Hindu lineage. Destroyed Hindu temples and imposed taxes like Jaziya and Pilgrim's tax on Hindus. Implemented Sharia courts, providing Islamic law to a broader population, including non-Muslims. Prohibited certain Hindu practices and public religious events.