HELP PLEASE
Which BEST explains why the major powers of Europe became involved in the conflict between Austria-Hungary and Serbia in 1914?
А
They thought that the expansionist policies of the two nations would reach their borders.
B
They were driven by humanitarian concerns for the civilians.
C The monarchies were all interrelated.
D
They were all bound by treaty to one side or the other.

Respuesta :

Answer:

D

Explanation:

The primary reasons a lot of countries got involved was because they either had treaties with Serbia or Austria-Hungary. Like France being allies with Serbia and Germany being allies with Austria-Hungary. In the end Serbia had more allies and they won the war