Question

One of the causes of World War I was imperialism. Imperialism is the system of taking control of many nations. Which of these is an example of imperialism that led to the war?
Austria-Hungary was trying to take over Serbia.
If one country was attacked, its allies would help defend it.
Some countries were neutral and stayed out of the war.
Russia and Germany were building up their armies.

Answer 1

it was a :)

Answer 2

so do you no longer need help