All of the mentioned things were a direct consequence of World War I. After the end of WWI the Austro-Hungarian empire collapsed, new nation-states were created and Germany lost all its colonies - these are exactly the same things that were asked in your question.
<span>Ensure the general public good is maintained and protected.</span>
The correct answer would be wrong or misleading advertising. Laws that implemented the consumer's right to be informed forbid false advertising. Black propagandas are often used by businesses who wants to convince consumers to buy their products in a very exaggerated way.
The answer to the question is C
