How did the Columbian Exchange affect European trade? A.) It helped establish trade routes to Africa. B.) It helped establish transatlantic trade routes to the Americas. C.) It helped European traders establish a shorter route to China. D.) It helped European traders establish stock exchanges.
c because the key word effect so answer c say's some thingthing about it "establish" meaning later on, also stock exchange would be something major because it allowed them to have new things they could never get in there own country.
