The passage lists different navigational instruments available to explorers. Which of the following navigational instruments was not available to Christopher Columbus?

hello your answer is

china and usa

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the democratic and republican parties

explanation:

no options provided, here,but the answer to this question is often: a historian cites a japanese newspaper article published a year after the end of world war ii in order to draw conclusions about the effect of the war on the japanese economy.

clearly from the answer, the historian alludes to historical sources,and records to aid in analyzing and drawing conclusion on the effect of the war on the economy of japan.