Answer:
Probably medicine, although not sure.
Explanation:
Accidents and diseases and injuries and other medical related problems happened all the time on the Trail, so A seems the most likely.
Answer:
The peasants and the laborers
Explanation:
Because the need for demand increased so the peasants and the laborers had more jobs and the demand increased.
I hope this helps1
A summary of the actions of the many aggressive regimes in Europe of the past several centuries would include mostly religious "holy" wars and a desire for territorial expansion.
Its 1 because 3 and 4 relates to a monarchy and 2 isnt what happened
