A graph of velocity vs. time of a ship coming into a harbor is shown.

How would you describe the acceleration of the ship based on the graph?
The ship is moving in the forward direction at a steady rate. Then it decelerates
in the forward direction, and then continues to slow down in the forward
direction, but with more deceleration.
The ship is moving in the forward direction at a steady rate. Then it decelerates
in the forward direction, and then continues to slow down in the forward
direction, but with less deceleration.
The ship is moving in the forward direction at a steady rate. Then it turns around
and starts decelerating, while traveling in the reverse direction. It then
accelerates, but slowly.
The ship is moving in the forward direction at a steady rate. Then it accelerates
in the forward direction and then decelerates.