Answer:
Because as long as the number of free states and slave states remain equal, Southern senators could defeat any attempt to interfere with slavery.
"Frederick Taylor" was the person among the choices given in the question that <span>developed
scientific management and time-study analysis. The correct option among
all the options that are given in the question is the fourth option or
the last option. I hope that this is the answer that has come to your
help.</span>
Flagpole sitting is the cprrect answer