What was affected by the exchange of biology, food, and natural resources during the Columbian Exchange? A much of the known world, through trade and contact B only Europe and the Americas C only Europe, the Americas, and Africa D only North and South America

A much of the known world, through trade and contact

Explanation:

The Americas and Europe started the Columbian Exchange, because this exchange was caused by European explorers setting foot in the American continent. However, the exchanges also reached Africa, and Asia, even as far as China or Southeast Asia, so we can say that it affected much of the known world at the time.

a.   it resulted in widespread unemployment.

the three roles stated in the dialogue develop the siblings' personalities.

lloyd's personality looks like a trademarketer

dana's personality is afraid from lloyd's behavior and the oldest sister is a decided person who tries to solve any conflict