Question

whose arrival in 1492 opened exploration and settlement of the americas for europeans, drastically changing the lives of all indigenous people in north and south america?
christopher columbus
ferdinand magellan
hernando de soto
marco polo

Explanation:

Christopher Columbus arrived in the Americas in 1492, which initiated European exploration and settlement, impacting indigenous peoples. Ferdinand Magellan is known for circumnavigating the globe, Hernando de Soto explored parts of North America later, and Marco Polo traveled to Asia.

Answer:

A. Christopher Columbus