All of the following played an important role in the outbreak of ww1 except which one?
a. ethnic tensions particularly in eastern europe
b. competition between imperialist nations
c. an exaggerate sense of nationalism
d. a deadly flu pandemic

How would high tariffs hurt america? a. fewer immigrants would be able to move to america b. sales of american products to other countries would go down c. americans would sell more goods to other countries d. goods imported from other countries would cost less