Question

which of the following best describes the columbian exchange that occured during the age of discovery

Answer 1

Do you have the options?

Answer 2

No large scale historical event can be reduced to one sentence. We are still living with the developing consequences of the European discovery of the Americas, which is what I presume you mean by the Columbian Exchange. Think of all the fuss about Hispanics in the USA. And, of course, the approx 15 million black Africans who were shipped in slavery to the Americas.