Question

Which of these was a factor in the United States entrance in World War I?
A)
the invasion of Poland
B)
Japan's invasion of China
C)
The Axis threat to the Panama Canal
D)
German unrestricted submarine warfare

Answer 1

what u think about the answer?

Answer 2

I think its C

Answer 3

The answer is D. Germany's Unrestricted Warfare

Answer 4

d