I think it's actually, D) The South had more effective military commanders.
In the era of the mid-1800s, the westward expansion that has been resultant of the belief in Manifest Destiny is increased dramatically.
<h3>Why was the idea of Manifest destiny used?</h3>
The idea of Manifest Destiny was utilized to justify the forceful relocation of Native Americans and other populations from their natives during the 19th century.
With the addition of new states to the Union, the slave trade became more pressing, resulting in the start of the Civil War.
Therefore, the correct option is the first word.
Learn more about Manifest Destiny here:
brainly.com/question/505778
His role is to give his noble experiment.<span />
B) Plain Native Americans benefited from the horse
