Respuesta :
Answer: It's all of above
Explanation: In the past, the actual Technologies like Electronic devices weren't invented in 1914-1918.
The technologies and conditions made during World war I as a new kind of war are poison gas, machine guns, and submarines that transformed the way war was fought.
What is War?
War refers to the intense armed conflicts between states, society, and government.
The technologies and conditions that made World war I a new kind of war are poison gas and machine gas.
Therefore, B and C are the correct options.
Learn more about War here:
https://brainly.com/question/11375126
#SPJ2