Answer:
Good choice:
C Northerners who believed the law was unfair began to support the abolitionist movement.
Step-by-step explanation:
The passing of the law was a used by abolitionists to reinforce their message. It stirred controversy in the North because enforcing the law could make anybody an accomplice of slavery and its horrors. It also inspired a gifted storyteller, Harriet Beecher Stowe, to write the famous novel Uncle Tom´s Cabin.