The immediate cause of World War 1 is the assassination of Archduke Franz Ferdinand of Austria-Hungary.
Answer:
d. italy
Explanation:
I wouldn't really call Italy "helpful" but that's the only event that actually happened IRL. (unless you count D Day as an invasion of france.) and Italy is the only one here that's an actual ally of germany.
<span>the effect would be that Colonies were becoming important so that nations didn't have to rely on other countries for raw materials.
Mercantilism is the belief that stated a nation could achieve superiority among other nations simply by excelling in trades. This belief make the colonies improve their own trading capacity so they could accumulate more power compared to other nations.</span>