It was used as a secret code among the slaves.
Answer:
Am I dreaming?
It's quiet, though it crashes.
The silence of the tide.
They fly over it, but what do they see?
Do they feel calm? -- they see eternity.
The color of the tide.
Why must you feel afraid?
It's easy, see?
I can hear myself breathe,
I have no more responsibility.
The crashing of the tide.
I hope this helps! I just made it up myself.
Your answer is going to be C.
The first one is answer D