Answer the following question given this paragraph: 

A model is a representation of an object, system, or process. For example, a road map is a representation of an actual system of roads on the ground. Models are very useful in science. They provide a way to investigate things that are too small, large, complex, or distant to investigate directly. To be useful, a model must closely represent the real thing in important ways, but it must be simpler and easier to understand than the real thing.


Q: What term means a representation of an object, system, or process?

 Choices:

- pattern

- presentation

- icon

- model

A:
model
