Directions: Read the passage and answer the question:
In Plato's famous allegory of the cave, he presents a scenario in which prisoners have been chained inside a cave since birth. They are facing the wall of the cave, unable to turn their heads to see what is behind them. Behind the prisoners is a fire, and between the fire and the prisoners, there is a raised walkway where various objects are placed, casting shadows on the cave wall. The prisoners, having never seen anything else, believe that the shadows on the wall are the only reality.
Question: What does the raised walkway between the fire and the prisoners symbolise?
The path to freedom and enlightenment.
The physical barrier prevented the prisoners from escaping.
The prisoners' inability to turn their heads.
The shadows on the cave wall.