It’s D. “it changes from a symbol of freedom to a symbol of captivity”
I think his name was Lyndon. Anyway, when Lyndon tried to smuggle letters out with released men, he found out that the letters he tried to send with his friends that were free from prison were not sent. The released men were searched and the found letters were read and confiscated.
Many things can be learned from a journey. You can learn from your mistakes and learn to not make the same mistakes. You can also learn alot of things about yourself, depending on what the journey is.