Which of the following best describes the antebellum period?
A. It is the time when industrialism will replace human labor.
B. It is the period immediately following the Civil War known as
the Reconstruction Era.
C. It is a time in American history from the late 18th century
until the start of the Civil War.

C. It is a time in American history from the late 18th century  until the start of the Civil War.

Explanation:

As per the  American history, the Antebellum Period is commonly regarded to be the time before the Civil War and after the Constitution was adopted in 1789. It was associated with the rise of abolition and the country's gradual division between the slavery supporters and abolitionists. The conquest of new territories and western expansion intensified the slavery issue and contributed to the Civil War.

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