The answer is A. A band of traveling pilgrims entertain one another with stories as they camp along their journey.
Step-by-step explanation:
The term "frame narrative" is used in literature when a story serves as a frame or context to include another narrative or narratives. This element is used in the story "The Canterbury Tales" because, in this, the main story or frame narrative is the story of a band of pilgrims going to Canterbury, and this context serves to introduce many other narratives as each pilgrim tells own stories during the journey as part of a contest to entertain one another. According to this, option B describes the frame narrative.