Your first impression would either be selection of clothes or voice
If you can't find all the needed elements for an MLA citation of an Internet source you can A. Omit a citation for the source.
The correct answer is The unfavorable descriptions of the pardon-seller’s physical appearance imply that the narrator thinks poorly of this character, he uses several words that don't talk about a nice person like rat's tails as a description for his hair or the fact of having goat's voice.
The other options talk about positive attributes which are not presented in the prologue reason why they can not be correct.
Answer:
Christopher McCandless, a.k.a. “Alexander Supertramp” or “Alex” - — The protagonist of Into the Wild and the subject of Jon Krakauer’s investigative reporting. Compact, athletic, and serious, McCandless has a high IQ and reads voraciously.