Which new technology was developed that lead to a drastic change in the lives of the soldiers living in the trenches?


A. The creation of the mobile X-ray machines allowed the soldiers to have a much higher chance of survival as the doctors were able to find shrapnel and other issues before performing surgery


B. The creation of weaponized chemicals such as mustard gas that forced troops to live in fear and have to constantly be ready to done their gas masks


C. Soldier developed a new way to prevent trench foot by medicating they feet before each day so they no longer had to worry


D. The creation of the tank as it allowed troops to have protection from machine gun fire as they attempt to take enemy fortifications



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