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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How did the Missouri Compromise contribute to the Civil War?Others felt that it made the north seem more aggressive in its anti-slavery views and contributed to southern resentment, which may have led to the Civil War occurring sooner. The Missouri Compromise was meant to create balance between slave and non-slave states.
Their goal was to get rid of black people