Answer:
D. the rise of totalitarian governments
Explanation:
Operating industrial labor was simply dangerous because safety mechanisms and protocols weren't quite established; so people who worked with the machines could be fatally injured if they weren't careful. Also, most of the industrial machines back in the earlier 20th century were rather new.
You can imagine all the kinks that had to be worked out!
The number of deaths within a society are measured and referred to as Mortality rate. This measures the number of deaths in a given period of time and geographical area. Within mortality rates more specifical sub-genres of the rate might be observed, such as Infant Mortality rate, Maternal Mortality rate, etc.
There’s google but the wars 1 and 2 had no affect