Which is a motif in "An Occurrence at Owl Creek Bridge" that represents being trapped?

The noose is the motif that represents being trapped because it physically binds Peyton Farquhar and signals that he has no escape from the execution. The cannonballs, railroad tracks, and wooden planks are part of the setting or action, but they do not symbolize confinement as directly as the noose does.

AI-written and checked against the verified answer.