What event was an immediate cause of the Civil War? A the return of runaway slaves to the South
B the publication of the Ostend Manifesto
C the Dred Scott court case
D the bombing of Fort Sumter by Confederate forces

D

Explanation:

After tensions were on the rise and the south officially seceded from the Union, after they fired on Fort Sumter war was declared shortly afterwards.

c

explanation:

several states had passed similar laws, but they were limited to intrastate businesses. the sherman antitrust act was based on the constitutional power of congress to regulate interstate commerce.

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