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Can someone me with my essay? editing?

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?

How did magellan's discovery of what is now considered the philippines directly affect the native populations that were living there? a. they disappeared deep into the new land and started another settlement b. they became aggressive after having a new religious view upon them c. they became restless to travel the world on the ships they encountered d. they became angered over losing their lands' raw goods like fruits and spices