Which statement correctly describes a model? 1. Models show all system detail. 2. Models perfectly mimic the system. 3. Models focus on specific details. 4. Models are never updated

The statement that correctly describes a model is:

3. Models focus on specific details.

Models are simplifications of reality that are designed to capture certain important aspects of a system while ignoring others. They do not show all details or perfectly mimic the system, and they can be updated as needed based on new information or changes in the system.