Answer:
C) respalda a traves de datos comprobables la eficacia del producto
Explanation:
The underlined part is "<u>28,4%en la elasticidad y firmeza de la piel</u>" or "<u>a 28.4% increase in elasticity and firmness of the skin</u>".
In the context, the sentence is talking about a anti stretch cream called as EUCERIN ANTI-STRETCH CREAM. It says that if women use the cream for about eight weeks, they will get a good skin tolerance and it is clinically proven that there is increase in elasticity and firmness of the skin by about 28.4% after using this anti-stretch cream.
Thus this shows the effectiveness of the cream and they have also provided a verifiable data along with it which is verified and proven in chemical testing of the cream.
Farmers faced tough times. While most Americans enjoyed relative prosperity for most of the 1920s, the Great Depression for the American farmer really began after World War I. Much of the Roaring '20s was a continual cycle of debt for the American farmer, stemming from falling farm prices and the need to purchase expensive machinery. When the stock market crashed in 1929 sending prices in an even more downward cycle, many American farmers wondered if their hardscrabble lives would ever improve.
Answer:
The Great Wall impacted the people of China because it was a great source of protection that is the main reason they built it in the first place. Without this amazing stone and brick structure protected the Han, Qin, Ming and many other dynasties could not be protected without it.