What MAIN cause of WW1 motivated Great Britain's actions during the time leading up to "The Great War"?

Question

What MAIN cause of WW1 motivated Great Britain's actions during the time leading up to "The Great War"?

Imperialism - Great Britain wanted to continue to have the largest empire

Alliances - Great Britain was angry about not being part of the Triple Alliance Powers

Nationalism - Great Britain's belief in its superiority over other European powers

Militarism - Great Britain's desire to keep having the greatest navy in the world

Answer 1

Alliances - Great Britain was concerned with maintaining its alliances with France and Russia in order to protect its own interests and security against the growing power of Germany and the Austro-Hungarian Empire.