The author considered the dominant personality in nineteenth-century american novels was
james fenimore cooper
nathaniel hawthorne
sarah orne jewett
mark twain

The author considered the dominant personality in nineteenth-century American novels was Mark Twain

Explanation:

Mark Twain wrote some of the most influential books in the nineteenth century reflecting the real life of people during the time of the gold rush, some of his most famous works include The Innocents Abroad, Roughing It, and Life on the Mississippi, The Adventures of Tom Sawyer and Adventures of Huckleberry Finn.

a biography is a genre that mainly accounts somebody's life and that is written by somebody else. this genre supports sonia nazario's desire to share enrique's life because she can fully inform readers of his entire emotional journey.

in a biography, an author can share the readers almost everything about a person's life, or just one key event or personal aspect the author is interested in telling, like in this specific case in which sonia nazario is centered in enrique's emotional journey.

happy new year to yo!