Summary by any other name
In a work of fiction dialogues and descriptions are the best place to look for supporting details that indicate the theme
Please Post the story So I can answer your question and put who character S is.
i would say the anwser is most definetly C
"C. By reviewing information in and around the unknown word."
When attempting to decipher the meaning of a new word, it is often useful to look at what comes before and after that word. The surrounding words can give readers helpful context clues about the meaning and structure of the new word, as well as how it is used.