Answer:
the last answer should be correct
Russia mobilizing their troops was a direct cause of Austria-Hungary declaring war on Serbia. They wanted to mobilize their troops because they wanted to prepare and get ready for a war.
Your answer will be:
C. someone who believes the kings power comes from the military.
Knights, were armored military units, sometimes on horses that are usually in an army to help protect their leader. IF a king doesn't have the support of troops, he literally cannot reign. So you will need the militaries help
hope this helps
Answer:
Perhaps the amount of wars, or death caused during this period.