Option b is the correct answer. Pair 1 correctly matched: Shankardeva (simhana III) was the ruler of the Seuna (Yadava) dynasty of Devagiri from 1308-1311. Pair 2 incorrectly matched: Ramachandra (1271-1311 CE), a Yadava ruler of Devagiri, seized power by ousting his cousin and expanded his kingdom by defeating Hindu neighbors. In 1296 CE, Alauddin Khalji invaded, and Ramachandra paid tribute. Alauddin's later invasion in 1308 led to Ramachandra becoming a Delhi Sultanate vassal. He aided Alauddin in battles against Kakatiyas and Hoysalas. Pair 3 correctly matched: Veera Ballala III (1292-1342), the last significant ruler of Hoysala Empire, united its northern and southern branches from Halebidu. He engaged in conflicts with Yadavas, Pandyas, and faced invasions by Alauddin Khalji and Muhammad bin Tughluq from Delhi. His reign's challenges contributed to the rise of the Vijayanagara Empire in South India, supported by Harihara I and Bukka Raya I, former military servants. Pair 4 correctly matched: In 1311 AD, Malik Kafur, under Alauddin Khilji's command, defeated Vir Pandya, the ruler of Madurai. This marked the Delhi Sultanate's dominance over the region and showcased Kafur's military prowess.