Why did leaders believe alliances would keep a “balance of power” that would prevent war?

I believe the answer is C.

it foreshadows the theme of the paragraph and hints the topic that will be discussed in the paragraph!

brainliest means the answer that is best and you found it very

if you ask any question and 2 persons gave you answer for your question and the answer of one person you liked the most and found it most the we can mark it as brainliest . at the side of every person's answer an option of brainliet then we can appericiate the user by marking it as brainlist

if someone marks our answer as brainliest then we can get ranks also

done.