Which statement BEST explains how the near 36% population gain in the United States between 1840 and 1850 led to the Compromise of 1850? A
The acquisition of new territories, new states, and the influx of new immigrants negatively impacted the slave and free-state balance that had been previously determined by the Missouri Compromise. A new Compromise was required.

B
The census of 1850 sought to correctly count slaves as full persons and thus increase the southern states’ Congressional representation. The Compromise of 1850 prevented this because of pressure from the northern states.

C
The pace of population growth between 1840 and 1850 required the U. S. Congress to revisit the protocols for the collection of census data. The new protocols were incorporated into the Compromise of 1850.

D
Since the greatest increase in population was within the northern states, the southern states demanded new rules to protect their rights to own slaves, hence, the Compromise of 1850.

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