Adam Smith argued that individuals should own and control businesses and make all the decisions about them.
Answer:
C. Chemical weapons.
Explanation:
TL:DR Chemical gas is a war crime due to the amount of suffering it causes. Mustard gas burns the skin, Phosgene is impossible to see, and Chlorine can make you drown in your own body.
Machine guns had been in use and invented since 1908, with invention of weapons such as the Vickers and German Maschinegewehr 08. Trench warfare wasn't a weapon, but more of a tactic. Mines weren't a war crime either as they most likely weren't deemed to cause "unneeded suffering" and their purpose usually was to simply discourage the travel of an area. Usually, if you stepped on a mine you'd die.
Meanwhile, Chemical gas was simply invented on accident as the German Empire's scientist,
The Vietnam War usually has a negative legacy in the eyes of American citizens. This war caused the lives of thousands of US soldiers and involved hundreds of millions of dollars spent by the federal government. Many citizens did not agree with/understand why we were putting so many resources into a country that was thousands of miles away. This resulted in hundreds of protests across the US.
Along with the "waste" of resource/soldiers, citizens also disliked the way in which the US government used tactics that resulted in the deaths of innocent civilians. The use of Agent Orange was a perfect example, as this herbicide had detrimental health effects on thousands of innocent Vietnamese citizens.
Easter ..................................