Read this line from "O Captain! My Captain!".

The ship is anchor'd safe and sound, its voyage closed and done;

What does this line refer to?

The ship is Lincoln, who is home from a trip.
The ship is the army, who continues to fight the war.
The ship is the army, which is safe now that the war is over.
The ship that has arrived is anchored to the dock.

ITS (C) The ship is the army, which is safe now that the war is over.