Why did president wilson think the US should join ww1?

The combined effect of the Zimmerman telegram and renewed attacks on American shipping are seen by historians as the immediate catalysts for pushing the United States to war.

Explanation:

When war broke out in Europe in 1914 President Wilson declared that the United States would follow a strict policy of neutrality. This was a product of a longstanding idea at the heart of American foreign policy that the United States would not entangle itself with alliances with other nations.

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the answer is option a.

president jefferson protested this interference in american trade. he sent james monroe to london to negotiate a treaty. jefferson wanted britain to stop taking sailors from american ships, and to stop interfering in the trade of neutral nations. monroe tried many times to discuss such an agreement. but the british foreign minister was always too busy to see him.

explanation: