According to Annette Gordon-Reed, how did the Constitution uphold slavery? *

There were grounds on which some delegates were immovable - slavery was barely addressed even though 18% of the population was in bondage at the time (according to the 1790 census).

Explanation:

How did the constitution deal with slavery ?

The constitution also prohibited Congress from outlawing the Atlantic slave Trade for twenty years. A fugitive slave clause required the return of a runaway slaves to their own owners. The Constitution gave the federal government the power to put down domestic rebellions, including slave insurrections

well to answer ur question to be completly honest

i would say b. research typically uses a variety of sources