The main idea of this excerpt is the fact that the Grimm Brothers had a strong belief (that the most natural and pure forms of culture were linguistic and based in history) and in following it, they <em>saved</em> the fairy tale. In order to do so, the author gives a supporting detail and reveals the main idea, followed by more details.
Can you type the paragraph out in a comment?
We need the story though to help you...
Answer: C
Explanation: This demonstrates that the Jews were viewed as lower than animals
B>it's because it states there is only one.