Question

which items originated in the americas and became european staples as a result of the columbian exchange?
corn, chocolate, rice, and sugar
rice, cattle, tomatoes, gold
wheat, chocolate, pineapples, potatoes
corn, potatoes, chocolate, tomatoes

Explanation:

First, eliminate items not native to the Americas: rice, sugar, cattle, wheat originated in Afro-Eurasia. Gold is a mineral, not a staple crop. The remaining items—corn, potatoes, chocolate, tomatoes—are all native to the Americas and became widespread European staples after the Columbian Exchange.

Answer:

corn, potatoes, chocolate, tomatoes