PL HELP What is Ernesto Galarza's purpose for writing "Barrio Boy?"

Read this excerpt from tim o’brien‘s “ambush” “i had already pulled the pin on a grenade. i had come to a crouch” which literary device is most clearly shown in this excerpt?

Read this example: original work - a novel about a man's struggles to returnhome to his family after spending the past ten yearsfighting in a war. which work would represent a change to the artistic medium of this originalwork? a. a story written about the man's adventures since the warb. a novel that translates the story into another language. c. a painting of the man wishing he was home with his familyd. a book written about the war the man was fighting

When the author quotes the actress sarah brown as saying, i truly believe that this film gives an important message to audiences, the author is using a) repetition. b) a testimonial. c) an ethical appeal. d) the bandwagon method.