Given that:
- The ship is stationary at sea.
- The tugboat is 24 kilometers away from the ship at a bearing of 300 degrees.
- The yatcht is 20 kilometers from the tugboat at a bearing of 250 degrees.
You need to remember that Bearing is defined as an angle that is measured from the north (in clockwise).
Therefore, you can draw the following diagram of the position of the ship and the tugboat (it is not drawn to scale):
Knowing the bearing between the tugboat and the yatch, you can draw it on the same diagram:
Hence, the answer is: Option D.