Which of these was not a factor in the build up to World War I?

Question 3 options:

A familial dispute amongst monarchs as to who inherited territory in the Balkans.


Alliances that set-up a network of countries ready to support one another if they were attacked.


Nationalist sentiments feeding national pride and a desire for independence from empires.


Militarism provoking a build up of arms and military forces.

20 points for answering