Answer:
A. Resources and economic opportunity
Explanation:
During the earlier phase of Exploration, Most Europeans still run based on A Monarchy system. In this system, nobles owned the vast majority of resources in the country. This leaves many of them with very little opportunity to advance within he society.
At that time, North America had the reputation as a land with very low population yet possessing a massive amount of natural resources just laying around across the regions.
Many European people saw this as an opportunity, They wanted to start new businesses and improve their quality of life. As a result, many of them race across the sea/continent to come and settle in North America