Who lived in America before the Europeans arrived?

Before Europeans arrived in America, the land was inhabited by Native Americans. These Indigenous peoples had diverse cultures, languages, and societies that had developed over thousands of years. They were the original inhabitants of the continent, establishing complex communities and systems of governance long before the arrival of European settlers. Native Americans adapted to and thrived in various environments across North America, with rich traditions and histories that contribute to the country's heritage today.

Other choices, such as Colonial Settlers and Explorers, refer to groups that arrived in America after European exploration began in the late 15th century. While the Vikings did reach parts of North America around the year 1000, their presence was not widespread, nor did they establish lasting communities as the Native Americans did. Therefore, the most accurate answer that reflects who inhabited the Americas prior to European arrival is Native Americans.