B. Providing national defense
The U.S government was created to serve the interests of its people key of which is to protect and defend its people from all enemies, whether domestic or foreign. This is the basic function of government
The demand quantity will increase due to more of them being bought.
In 1939 Japan had control over Korea, Taiwan and Manchuria (Northern China). They had declared war on mainland China to gain more territory and resources.
Lasting roughly 2.5 million years, the Stone Age ended around 5,000 years ago when humans in the Near East began working with metal and making tools and weapons from bronze. During the Stone Age, humans shared the planet with a number of now-extinct hominin relatives, including Neanderthals and Denisovans