One short-term effect was to shock the Allied home-populations with the surprise of a German offensive and the realization that the war was not going to be over as quickly as they had thought.
It’s because the wind blew the spanish ships northwards, hope this helps :)
B)
Source: http://www.loc.gov/teachers/classroommaterials/presentationsandactivities/presentations/timeline/civilwar/recontwo/
The answer is B
The movement of goods, money, and enslaved people that made up triangular trade