Answer:
The answer is D) savant syndrome.
Explanation:
This condition is present when someone with a considerable cognitive disability shows an extremely developed skill. Most of these skills are related to memory in all its forms, such as remembering all the words in a book's chapter, or drawing a picture of a city from memory.
This syndrome is usually associated with the autism spectrum disorder, and about fifty percent of <em>savants</em> present a degree of autism.
The years 1865-1877 was the so-called Reconstruction Era. The Reason for this reconstruction was the devastation of the country during the Civil War.
Additionally, the South had to be transformed from the point of view of the North: with slavery abolished, many social changes had to be introduced - this was the other reason for Reconstruction.