Which direct quote from "The School Days of an Indian Girl" provides the best evidence for the idea that Zitkala-sa was miserable at boarding school?
a. "The annoying clatter of shoes on bare floors gave us no peace."
b. "Immediately I dropped my eyes, wondering why I was so keenly watched by the strange woman."
c. "I spied them in the rear ranks, looking as uncomfortable as I felt."
d. "In my anguish I moaned for my mother, but no one came to comfort me."