Models need to be changed when scientific understanding changes. Thus, the correct option is B.
What are Models?
Models may be defined as a way of representing a real phenomenon with the generation of a physical, conceptual, or mathematical portrayal.
Models are useful in the field of science because they enhance explanations, generate discussion, make predictions, deliver visual representations of abstract concepts, and construct mental models.
Models basically depend on scientific understanding based on specific fundamental characteristics. These characteristics are significantly proven by scientific methods and have valid evidence behind them.
Once the new research developed the new scientific understanding, the old one has been changed. And once this scientific understanding alters, models also have to be changed now.
Therefore, Models need to be changed when scientific understanding changes. Thus, the correct option is B.
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