How did the Confederate Constitution differ from the United States Constitution?

The Confederate Constitution contained provisions to protect slavery, making this the correct choice. The Confederacy was formed primarily to preserve the institution of slavery, which they viewed as essential to their economy and way of life. As a result, the Confederate Constitution explicitly safeguarded the right to own slaves, ensuring that slavery could not be challenged or abolished within the Confederacy.

This focus on slavery was a defining feature that distinguished it from the United States Constitution, which, while allowing slavery in practice at the time, did not contain explicit language that protected the institution in such a direct manner. The Confederate Constitution also had similarities in structure to the U.S. Constitution, negating the idea that it was entirely different in form. While it did have its own Bill of Rights, this was not a standout characteristic that made it different from the original U.S. Constitution, where a Bill of Rights was introduced shortly after its ratification. Thus, the emphasis on protecting slavery is the key reason why this choice is recognized as correct.