The Roman Empire showed great demand for which goods that were transported across the Arabian Sea?

Spices, especially pepper, and textiles

The correct answer is Option 3 - Spices, especially pepper, and textiles

The Roman Empire showed great demand for:

Option 1- Timber and stone
Option 2- Decoration plants and salt
Option 3- Spices, especially pepper, and textiles (answer)
Option 4- Grain and metal ores

From the sixth century BCE, land and river routes criss-crossed the subcontinent and extended in various directions – overland into Central Asia and beyond, and overseas, from ports that dotted the coastline – extending across the Arabian Sea to East and North Africa and West Asia, and through the Bay of Bengal to Southeast Asia and China. Rulers often attempted to control these routes, possibly by offering protection for a price. Those who traversed these routes included peddlers who probably travelled on foot and merchants who travelled with caravans of bullock carts and pack-animals. Also, there were seafarers, whose ventures were risky but highly profitable. Successful merchants, designated as masattuvan in Tamil and setthis and satthavahas in Prakrit, could become enormously rich. A wide range of goods were carried from one place to another – salt, grain, cloth, metal ores and finished products, stone, timber, medicinal plants, to name a few. Spices, especially pepper, were in high demand in the Roman Empire, as were textiles and medicinal plants, and these were all transported across the Arabian Sea to the Mediterranean.