Final answer:
The Dred Scott decision ruled that enslaved individuals were property and not citizens.
Step-by-step explanation:
The correct statement about the Dred Scott decision is: D) It ruled that enslaved individuals were property and not citizens.
In the Dred Scott v. Sandford decision, the Supreme Court ruled that black individuals, whether enslaved or free, could not be American citizens. The Court also declared that enslaved individuals were property and could not bring suit in federal courts. This decision had lasting implications and further deepened the divide between the North and South regarding the issue of slavery in the United States.