contestada

19. What was an important factor leading the United States to
enter the First World War? (5.4)
A. the existence of treaties between the United States, Great
Britain, and Austria-Hungary
B. the United States policy of opposing communism
C. German submarine attacks on United States shipping
D. Russian attacks on United States settlements in the Aleutian
Islands

Respuesta :

Answer: Germany's resumption of submarine attacks on passenger and merchant ships in 1917 became the primary motivation behind Wilson's decision to lead the United States into World War I.

Explanation: C