What sort of struggles did Civil War soldiers face before they arrived on the battlefield?

Not only did soldiers face the possibility of getting killed in battle, their daily lives were full of hardships. They had to deal with hunger, bad weather, poor clothing, and even boredom between battles. Soldiers were woken at dawn to begin their day.

Explanation: I got this from https://www.ducksters.com/history/civil_war/life_as_a_soldier_during_the_civil_war.php#:~:text=Not%20only%20did%20soldiers%20face,and%20even%20boredom%20between%20battles.&text=Soldiers%20were%20woken%20at%20dawn%20to%20begin%20their%20day.

a system in which products were made rapidly by machines

b is the answer i am assuming