In the canterbury tales, the pilgrims agree to participate in a storytelling contest.

at the hostelry
in london
in canterbury
in dartmouth

In the Canterbury Tales, the pilgrims agree at the hostelry to participate in a storytelling contest.

Explanation:

The moment in the story of "The Canterbury Tales" where the pilgrims agree to participate in the context happens in the tavern of the Inn after they have paid their bill and are getting ready to keep on their journey to Canterbury, the stories must be told in two parts, the first on their way to Canterbury, and the second on their way back.

bought and considered