Option c is the correct answer. The ruler famous as "Prithvi Raj Chauhan" is PrithvirajaIII. He was also known as Rai Pithora. He was a king from the Chauhan (Chahamana) dynasty who ruled the territory of Sapadalaksha, with his capital at Ajmer in present-day Rajasthan. He ascended the throne as a minor in 1177 CE and aimed to expand his kingdom through military actions against neighboring kingdoms. He famously defeated the Ghurid army led by Muhammad Ghori near Taraori in 1191 AD. However, he was later defeated by Ghori's army in 1192 CE at the same battlefield. This defeat is considered a significant event in the Islamic conquest of India. Important Tips Different Literary texts about Prithviraj Chauhan: Prithviraj Raso: Written by Chand Bardai around 1400 in a pingal script (combination of Braj and Rajasthani). It refers to Prithviraj's father Someshvar as a Gurjar. Doesn't use dehumanizing expressions for Prithviraj's rivals despite being composed during Muslim rule in North India. Focuses on Prithviraj's conflict with Jaychand of Kannauj rather than the Ghurid armies. Central episode: Prithviraj's battle with Jaychand where he loses many soldiers. After losing the Second Battle of Tarain (1192 AD) against Muhammad of Ghor, Prithviraj is blinded, imprisoned, and taken to Ghazni. In the finale, blinded Prithviraj uses his archery skills to kill Muhammad before being executed, differing from most other historical sources. Prithviraja Vijay Mahakavya: Written in 1191-21 by Kashmiri poet Jayanak, who served in Prithviraj Chauhan's court. Presents Prithviraj Chauhan and Muhammad of Ghori as irreconcilable rivals. Describes the Ghurid king as a cruel cow-eater and his ambassador as extremely ugly. Labels Muslims as "turuska" (Turk), "Yavana" (westerner), "raksasa" (ogre), and "asura" (demon). Also dehumanizes other rivals of Prithviraj, including the Hindu Chalukya rulers of Gujarat.