Answer:
Option: d) the transcontinental telegraph was completed.
Explanation:
The Pony Express started in America as a to mail delivery service that covered the areas of between Missouri and California. The mails were delivered by the riders who would ride hundreds of miles with switching to fresh horses in each station on his way. The Pony Express went out of business after the opening of the transcontinental telegraph because telegraph could be sent faster with less cost.
The answer would choice C, between the Tigris and Euphrates rivers.
The telegraph technology allowed for information to speed along fast, and highly accurate.
Freedmen needed to decide where to live and how to support themselves. Many also searched for lost family members. Not all were young or healthy enough to leave the plantations where they had been living. Some struggled with poverty and illness.
Exact PLATO answer:
Answers will vary but should touch on the fact that Black people had been "given" land to work during the War, which was now scheduled to revert back to the antebellum owners, and Black people were protesting this as unfair. Reflections should include a reference to the fact that the federal government had issued amnesty or pardons to the former landowners, so the case of ownership was not clear-cut. Reflections should also discuss the lack of options for Black people who were cheated, subjected to physical violence, or otherwise denied the rights they thought had been secured with the end of the war.