I say C. because the entire paragraph is talking about political power.
I believe that the answer is B.
Answer:
In an effort to explain where Cain and Abel acquired wives, some traditional sources stated that each child of Adam and Eve was born with a twin who became their mate. According to the Seder HaDorot, the wife and twin sister of Cain was named Kalmana, and the wife and twin of Abel was Balbira.
Explanation:
.... lol
The Kansas-Nebraska Act of 1854 was a huge catalyst in sending the nation to the Civil War.