Which characteristic regarding the americas often stood out the most for many europeans?

a. reports of human sacrifice
b. native american focus on self-reliance
c. native american beliefs about land ownership
d. the advancements in science and technology of many civilizations

is there multiple

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step-by-step explanation:

i believe it would influence their own way of understanding things. it shall be a foundation where they can draw or start an argument.   historians are also  scientists that  have their tools of analysis and expertise to unlock a variety of difficulties such as relationships of man, origin, politics, economy, and culture. based on facts and understanding on these areas, they may shade light to extract ideas and develop options to validate a hypothesis or debunk it.