Answer: B. They help scientists understand complex ideas and objects that aren’t easy to handle.
Step-by-step explanation:
A scientific model is a physical, mathematical or conceptual representation of the ideas, processes or events. It includes the simulations which can mimic the natural processes or events. These simulations in the form of models can help to visualize, define, quantify the natural processes, objects and other things to make the audience understand, teach and demonstrate and also useful for self knowledge.
These are useful for the scientists for understanding the ideas that are complex and can be learn by the simulations or models.