Hello there! I believe the best option answer is A) It has a flat and outline it is the middle of the ship.
In option A, it explains how the object "has a flat and outline it is the middle of the ship". This helps you picture what it looks like, and where it is. The other options involve characters (the ocean and the captain) interacting with it, but not what it is.
I hope this helps, have a great day!
