The answer is B because it is the answer
It allowed southern states to count 3/5 of the slave population as population for representatives.
Florida is the answer it wasn’t even a colony
They were of course enraged by the ruling and several political figures and journals vehemently denounced it. However, the most terrifying aspect was, in their view, that this decision was the first in a series of many that would eventually spread slavery to the entirety of the United States, including Free States. Senator Abraham Lincoln even explicitly stated his grave concerns in his House Divided speech of 1858.
