What is a frame narrative?

Answer:A frame narrative is basically a story within a story.

Explanation:For example the narrator telling there perspective of an event. (Story)

Frame story is a story set within a story, narrative, or movie, told by the main or the supporting character. A character starts telling a story to other characters, or he sits down to write a story, telling the details to the audience. This technique is also called a "frame narrative," and is a very popular form of literary technique employed in storytelling and narration.