The primary religious difference between the European nations that explored the Americas was that a large number of them were Catholic (mostly from Spain) and a large number of them were Protestant (mostly from England), although it tensions between the European nations in the Americas usually revolved around territory, not religion.
D. agreeing to the Rules within the society
The Columbian Exchange was very popular in the 15th and 16th centuries.
Marigolds covered the ground.
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The answer is christianity