Correct option is C
The Sangam Period (approximately 3rd century BCE to 3rd century CE) refers to the ancient Tamil era of literary, cultural, and political development in South India, especially in Tamil Nadu.
• Chera Dynasty – Ruled over western Tamil Nadu and Kerala; important port: Muziris.
• The Pandyas ruled from Madurai, Cheras from present-day Kerala (Vanji), and Cholas from Uraiyur and later Kaveripattinam.
• Sangam Literature – Composed in Tamil, includes works like Ettuthokai and Pattupattu.
• Tolkappiyam is one of the earliest Tamil grammatical texts from this era.
• Chola Dynasty – Early Cholas were based around Urayur; famous king: Karikala Chola.