Answer:
B. It helped establish transatlantic trade routes to the Americas.
Explanation:
It affected economic development by making it possible for large scale trade networks between the Old World and the New World to develop. ... The Columbian Exchange caused population growth in Europe by bringing new crops from the Americas and started Europe's economic shift towards capitalism.
<span>Romanticism im pretty sure
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Answer:
It was because of Germany's use of submarines against neutral passenger and merchant ships. The unrestricted submarine warfare was agitating for the US, the last thing that provoked the Americans was the Zimmerman telegram.
Hope this helps.