To establish order and safety
Answer:
This is a demand side market failure
Explanation:
Demand side market failure occurs when the business owner selling a particular product is not able to make the buyer pay for that particular product even though it may be in demand around that time.
Example are the Christmas decorations even though they are in demand around Christmas but the fact that they are decorating all over the most places, one can not charge people from looking and enjoying these decorations because they are usual all over the place .
Another example is also fireworks which are fired around Christmas everyone can enjoy them without having paid for them.
The correct answer that would best fit the given statement above would be option D. The concept model is the most recognized model for explaining how concepts are formed. The conceptual model serves as a representation which is made of the concepts in order to assist the audience to know, understand and simulate a subject that the model represents.