Anyone interested to play truth and dare game

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?

Danny went for a long bike ride he covered at least forty miles

Prompt: read the letter to the editor "i, too, have a dream." how does the writer use structure and language to persuade her readers and support her feelings about immigration? write an essay using evidence from the letter to answer the question.