I can confirm the answer is A. federalism
Generally speaking, "assembly line jobs" did not represent an obstacle during this time, since this in fact increased productivity through the "specialization of labor".
The biggest appeal of Christian Revivalism was the Protestant idea that people could have a personal relationship with God without having to pay indulgences to the Church, which appealed to many people who wanted a "pure" relationship with their God.
A-
Because it is the 3 main purposes of the government