Kahlo brusquely informed Rivera that she wanted him to tell her the unvarnished truth about her work. If she could not earn her living as an artist, she announced, she would take up some other profession to help her parents. "I want you to tell me if I am a good enough artist to make it worthwhile to go on." Why would the author include this event in the biography?

It shows that Kahlo was ready to quit and live with her parents.
It describes the beginning of Kahlo's relationship with Diego Rivera.
It shows that Rivera was not kind to Frida Kahlo.
It describes Frida Kahlo's feelings about her artwork.

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.

different routes can lead to sammy to different places, with different roads.   if you check a map, you can see the routes.   try to make connections of the places and count how many there are.   hope this : )