Answer:
The correct answer is B, <em>Republicans in Congress did not trust white southerners to adopt reforms giving rights to freed slaves</em>.
Explanation:
During this period Congress passed laws in order to reintegrate the country and to enforce what had been fought for in the Civil War, that is, the end of slavery.
After seeing that white southerners were getting their lands back and they were reorganizing their government without making it very differently from before the war, Republicans in Congress decided to enforce the Civil Rights Bill.
For the Bill to be put into practice in the south, Congress divided the South into military districts whose governments would be under martial law until black people's civil liberties were ensured. That meant that black people should be present in the government to ensure African-Americans wouldn't have basic rights denied.
Now the knowledge about historical events is almost automatically updated and hierarchically set in the Internet. All the new information we have to find in one place. We have many sources of information that describe one event from different angles. Finally, the technology allows to play back events, e.g. battles, which allows to better understand the context.
I think a but its your choice
The Niles water would be collected during the summer season because that's when the water would rise. This helped the Egyptians to grow their crops however the Nil would often flood and cause destruction to the surrounding land and crops.
He created the join or die propaganda, which reinforced that if the colonies didn't join together against Britain they would be defeated.