Question

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Explanation:

The Compromise of 1850 had several parts. The Fugitive Slave Law required Northerners to help capture and return escaped slaves. Most Northerners opposed slavery, so this law forced them to participate in enforcing slavery, making it very unpopular in the North. Option A (ending slave trade in DC) was a small concession to the North. Option C (California as free state) was favorable to the North. Option D (popular sovereignty in NM and UT) was more about future slave status, not as directly unpopular as the Fugitive Slave Law in the North.

Answer:

B. The Fugitive Slave Law