There were many ways varying from plain sabotage where they claimed that the Portuguese merchants were thieves, up to more controversial means such as ordering their assassinations and telling the king that he should have them killed because they didn't give him presents and plan to enrich their wealth at his expense.
You're answer is going to be C. "The Red Scare".
Hope this helps! :)
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<span>While Manifest Destiny, and the westward expansion of the United States, is most closely linked with transactions such as the Louisiana purchase in the early 19th century, the idea of persisted into the end of the century and was continuously used as justification for the continued development of the western states, domination of the Native American peoples, and persistent conflicts with Mexico.</span>
