Respuesta :
The best answer is A). The narrator situates a flashback of his experience in Vietnam between related events that take place after the war.
Please mark BRAILIESR
Please mark BRAILIESR
The sentence describing the best reason why Ambush contains a frame story is that the narrator situates a flashback of his experience in Vietnam between related events that take place after the war.
What is a frame story?
This is a literary technique that serves a companion piece to a story within a story.
This is a narrative that surrounds or frames another story or set of stories, and that's why in the story, the narrator situates a flashback which tells us another story within the main story.
Therefore, the correct answer is option A.
Read more about frame here:
https://brainly.com/question/939237