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.
Lithe in this sentence means, like, a small slender body. Lithe means slender or thin. "Although Amelia was slender or graceful, her sister was clumsy and awkward."
B. inconsiderate, because a synonym is something that has a similar meaning to a word
Washington, Harvard, and New Mexico go in where :))
