Final answer:
The main exports of the Sumerians, Babylonians, and Phoenicians included textiles and pottery, agricultural products and manufactured goods, and timber and cedar wood.
Step-by-step explanation:
The main exports of the Sumerians, Babylonians, and Phoenicians varied depending on the specific time period and location, but they generally included a) textiles and pottery, c) agricultural products and manufactured goods, and d) timber and cedar wood.
For example, the Sumerians developed a sophisticated mathematical system and were known for their pottery and other artistic traditions. The Babylonians were renowned for their agricultural production and manufactured goods. The Phoenicians, known for their maritime trade, exported timber and cedar wood.