Significant Crop from the Columbian Exchange

The Columbian Exchange, an important consequence of the voyages undertaken by Christopher Columbus and subsequent explorers, had profound effects on both the Old World and the New World. One noteworthy consequence was the introduction of new crops and livestock into various regions. These changes not only transformed agricultural practices but also had significant social, economic, and ecological impacts.

Considering the agricultural and dietary changes brought about by the Columbian Exchange, which of the following crops, introduced to the European diet from the Americas, was most significant in altering European agricultural practices and food security in the early 16th century?