What does the article reveal about the use of chemical weapons? a: the germans overpowered the french by using chemical weapons. b: by early 1915, both germany and the allies often used chemical weapons. c: the hague convention had prohibited the use of chemical weapons. d: early chemical weapons acted more like a blinding mist than a poison.

The correct option is "C:The Hague Convention had prohibited the use of chemical weapons."

Chemical weapons use the toxic properties of chemical substances to kill, injure or incapacitate. Chemical weapons differ from conventional weapons or nuclear weapons because their destructive effects are not due primarily to an explosive force. The offensive use of living organisms (such as Bacillus anthracis, the agent responsible for anthrax) is generally characterized as a biological weapon rather than a chemical weapon; toxic products produced by living organisms (eg, toxins such as botulinum toxin, ricin or saxitoxin) are considered chemical weapons. According to the Chemical Weapons Convention of 1993, a chemical chemical is considered to be any toxic chemical, regardless of its origin, with the exception that they are used for permitted purposes. Chemical weapons are classified as weapons of mass destruction by the United Nations Organization and their production and storage is prohibited by the aforementioned 1993 convention.