What is one reason why accidents happened in factories in the late 1800s and early 1900s?
Machines were too complicated for workers to use.
There were not enough workers to tend each machine.
Most machines had few safety features or measures.
There were not enough machines to make products

c

explanation

* i took a test

* on

* E-D-G-E-N-U-I-T-Y

History is not an exact science. The facts remain the same for all historians to people but their viewpoints always differ by definition, leading to different interpretations.

So, coming into an agreement on historical research is really, really hard, but then again - human society is built on a variety of opinions.