Fact 1: Aship is used for moving people across bodies of water.

Fact 2: An ocean is a large body of water.

Given the two facts above, answer the question "What is used to move people across an ocean?" with the following options: 
- A wagon
 - A wave
 - energy
 - wind
 - oil
 - dolphins
 - A ship
 - A catapult


 

       A ship  