Final answer:
The duty of the North if slaves escaped and were caught was to return them back to the South.
Step-by-step explanation:
The duty of the North if slaves escaped and then were caught was to B. return the slaves back to the south. The North was not a sanctuary for escaped slaves, as they were still considered property under the laws of the time. The Fugitive Slave Act of 1850 required the North to assist in the capture and return of escaped slaves to the South.
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