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which describes a result of the first battle of bull run?

a) southern leaders realized they needed better generals.

b) the north won a clear victory, which led them to the capture of richmond.

c) the low death toll made people think the war would be easy.

d) both sides understood the war would be long and bloody.

D) Both sides understood the war would be long and bloody.

Hope this helps chu

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D) Both sides understood the war would be long and bloody.

Hope this helps chu

Have a great day

☆ Dont forget to mark brainliest ☆

D) Both sides understood the war would be long and bloody.

Explanation:

D) Both sides understood the war would be long and bloody.

Explanation:

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

explanation:

to extend a country’s power and influence