<span>vigilante committees were basically formed to administer law and order where most considered it to be governmental structures inadequate. </span>
The best and most correct answer among the choices provided by your question is the second choice or letter B.
The use of submarines during World War I had made <span>naval battles the key battles of the war.</span>
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The first one is the answer.
Answer:
Slavery
Explanation:
If you are talking about the civil war
There was a treaty that gave them about 525,000 square miles of land