Answer:
Option: d. advanced the cause of a southern route for the transcontinental railroad.
Explanation:
In 1853, James Gadsden bought a strip of land from Mexican for $10 million. The Gadsden Purchase was a treaty in which the United States got some land from Mexico present Arizona and New Mexico. The purpose of this land was to build a railroad to California called the southern transcontinental railroad.
The Klu Klux Klan resurfaced in the 1920's with a deep hatred for African-Americans. The Klu Klux Klan is an extreme group which advocates white supremacy, white nationalism and anti-immigration through terrorist acts. The largest amount of Klu Klux Klan can be found in the Southern portion of the United States and the movement happened in different waves.
The people living in the colony of Jamestown had a very big problem with the swampy surroundings because the swamp was attracting lots of mosquitoes, and the mosquitoes were transporting diseases with them. Because there were lots of mosquitoes, people were getting stung by them on a daily basis and it happened very often that they would get some disease from them, and while some diseases did not caused big problems, some were fatal.
