Final answer:
Uraiyur (option a) is the Sangam town famous for its pearls and fine muslins; it was a prominent trade hub during the Sangam period. The Mesopotamians knew the Indus Valley Civilization as 'Meluhha', a term from ancient Mesopotamian records.
Step-by-step explanation:
The question is asking about a specific Sangam town that was famous for its pearls and muslins, a fabric that was said to be as thin as a snake’s skin. The correct answer is a) Uraiyur, which was well-known for its thriving trade in pearls and high-quality muslin cloth during the Sangam period. This town had a flourished trade with various ancient civilizations, including the Romans.
As for the history-related information presented in the reference, the Mesopotamians referred to the Indus Valley Civilization by the name ‘a. Meluhha’. Meluhha is the Sumerian term used in ancient Mesopotamian records dating back to the Akkadian times, referencing a trade partner civilization which scholars today believe was the Indus Valley Civilization.