C. I found a bag of marbles.
This is the only sentence that contains an indefinite article. Indefinite articles are "a" and "an" for singular nouns. "some" is the indefinite article used for plural or uncountable nouns.
"the" is a definite article.
This is a Interrogative Sentence
Answer: Amazement.
Explanation: her classmates would be amazed because her accent and dialect is new and maybe foreign to them, hence they would most probably be amazed
I’m not sure about the beginning but at the end he was kind of selfish and uncaring