The one that cause a consumer to have an elastic demand for a product is : C. the product isn't a necessity
If that product is a necessity (such as food and water), the demand wouldn't be affected by prices because people will still buy it anyway
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Scientists like Einstein, Bethe, Fermi, Teller, and Bloch emigrated from "Germany" in order to escape persecution and pursue scientific research, since this took place during the rise of the Nazi Party, which was highly anti-Semitic.
The German repeated attacks on the U.S.A
Answer:
A. It causes disease to spread more easily.
Explanation:
The answer is A becuase of overcrowding there would be more diseases since they are "piled" on top of each other. It would also cause a higher demand for jobs and houses.