Answer:
A. a battle journal written by an officer of the Confederate army
Explanation:
A battle journal written by an officer of the Confederate army would be the most reliable source to collect and transmit information on the Civil War.
Journals are records which are actually written during the time the action was taken place. So, a Confederate army putting down the experiences of a Civil War will be reliable because he is writing out of his experiences. Journals are credible because you can verify the facts from their original sources as well as it is enriched with facts and truths. Journals offer clarity.
The war cost more than 2 million lives and ruined the economy of Korea for twenty years. It also had implications for a wider conflict, the Cold War. The main protagonists of that political, economic, military and ideological contest, the Soviet Union And the United States of America, intervened in the Korean War. The Soviet Union and its ally China backed North Korea, while the United States gathered an alliance under the auspices of the United Nations (UN) to support the south
( I don't know if this is 100% correct but...)
