Read this excerpt from Frida Kahlo by Hedda Garza. Garza's purpose is
Aside from the caricatures she had scribbled in school
and the drawings for Fernando Fernández, Kahlo had
never paid much attention to art. She began teaching
herself from art books, studying the works of the Italian
Renaissance artists and experimenting with the colors
in her father's paint box. She painted portraits of visitors
and relatives who were willing to sit and pose for her
and gave the paintings away as gifts.
O to entertain young children with Frida Kahlo's
adventures; her tone is informal,
O to inform a general audience about Frida Kahlo's life
and art; her tone is formal,
O to persuade art buyers to collect Frida Kahlo's
paintings; her tone is informal.
O to inform art professors about Frida Kahlo's
technique; her tone is formal.

To inform a general audience about Frida Kahlo's life and art; her tone is formal.

Explanation:

The words used are not entertaining, they are complete sentences and the tone is serious.

read this excerpt from “incidents in the life of a slave girl.”

i went about my evening work with trembling steps. mr. flint twice called from his chamber door to inquire why the house was not locked up. i replied that i had not done my work. "you have had time enough to do it," said he. "take care how you answer me! "

i shut all the windows, locked all the doors, and went up to the third story, to wait till midnight. how long those hours seemed, and how fervently i prayed that god would not forsake me in this hour of utmost need! i was about to risk everything on the throw of a die; and if i failed, o what would become of me and my poor children? they would be made to suffer for my fault.

at half past twelve i stole softly down stairs. i stopped on the second floor, thinking i heard a noise. i felt my way down into the parlor, and looked out of the window. the night was so intensely dark that i could see nothing. i raised the window very softly and jumped out. large drops of rain were falling, and the darkness bewildered me. i dropped on my knees, and breathed a short prayer to god for guidance and protection. i groped my way to the road, and rushed towards the town with almost lightning speed.

what is the main idea of this excerpt?

harriet worked for a man called mr. flint who became very impatient when she did not finish her work.

harriet waited until after midnight to run down the stairs and jump out of a window into the rain.

harriet was a frightened young girl who found the faith and courage to leave her home for an unknown life.

harriet felt very nervous about running away because she did not like being alone in the darkness.

explanation: