In tim o'brien's chapter "ambush," what weapon did the narrator use? a. a grenade b. a knife c. an assault rifle d. a revolver

The answer is A grenade

it is the background information on the characters and setting explained at the beginning of the story. the exposition will often have information about events that happened before the story began. the exposition is often the very first part of the plot.

we need to see the paragraphs in order to answer this.