Step-by-step explanation:
The correct answer is B. tobacco. Tobacco was the product from the New World that made Jamestown an economic success. The introduction of tobacco cultivation by John Rolfe in the early 17th century proved to be a profitable cash crop for the Jamestown colonists. The demand for tobacco in Europe was high, and its cultivation and exportation became the primary economic activity of the Jamestown colony. The success of tobacco production played a significant role in the colony's economic growth and sustainability.