Though there is no text attached to the question, however, from the historical account, the evidence that did not support the claim in the question is:
"Europeans were respectful of Native rights to their land."
Hence, in this case, it can be concluded that the evidence from the text to support the following claim: "PNW Coastal Natives and European/American explorers tended to get along when they first made contact, " is option C "Europeans were respectful of Native rights to their land."
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