Answer:
D.)Spain
Step-by-step explanation:
Spain is the foremost European nation to settle in America. They settled across the Caribbean Islands, about fifty percent of South America, the majority of Central America, and a good percentage of North America.
On the other hand, while the English colonization of America started about a century later after the Spanish invasion, they quickly grew in power. They took over the majority of territories, even to those belonging to France and Canada.
However, it was Spain that poses an obstacle to English supremacy of North America, due to their massive presence and territory in the region. Spain, together with France also helped North American colonies against the English, during the Revolutionary War.