An essay is
a. a subgenre of fiction in which authors tend to employ experimental techniques.
b. a poetic and often dramatic type of writing that can sometimes lack coherence due to its freedom from logical structure.
c. a type of nonfiction writing in which the author makes deliberate style, structure, and diction choices to support a thesis.
d. a nonstylized and completely factual form of nonfiction in which the author's voice and style are completely absent.

the answer is: round.

in literature, round characters are considerably complex and experience or are subjected to unpleasant situations. as a consequence, they go through crucial sentimental and psychological development, which can cause surprise in the readers. in this case, juan's dramatic transformation is related to the adversities he meets at school.

no its not a run on sentence however i think you meant wet suits not sours also a run on sentence would be like surfers surf all winter long in southern california by using wet sours to keep them warm and the live their all year long