Answer:
The scenario that is the best example of a frame narrative is indeed letter C. Each of five witnesses in a courtroom drama tells his or her own version of events.
Explanation:
A frame story or narrative is the one that involves one or more interior stories. When you have characters telling stories inside the main story, the main story is the frame narrative. A famous example of frame narrative is Boccacio's Decameron. The frame story is about a group of ten people who isolate themselves trying to escape the plague. While isolated, they begin to entertain themselves by telling stories with different themes. These stories are the interior stories.
Therefore, the people in a courtroom drama are a part of a frame story. When they start to tell their own version of events, they are telling stories inside that frame story.
