Answer:
World War I developed into a global war for a number of reasons. First, the system of alliances quickly brought other nations into the war. This quickly led to a war between the two alliance systems. But Italy switched sides and entered the war on the side of the Triple Entente in 1915.
Explanation:
The slave trade played a major role in helping Europeans take control of much of Africa in the 1800s, since this allowed them to do business with local slave dealers and form alliances that kept them safe.
I believe the correct option would be a. Industrial resources
Answer:
It is b
Explanation:
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