Answer:
After the invention of the cotton gin in 1793, the economies of the Upcountry and the Low country of the state became fairly equal in wealth. The expansion of cotton cultivation upstate led to a marked increase in the labor demand, with a concomitant rise in the slave trade.
I believe the answer would be A ^^
The option that isn't true about the supplementary angle is A. Angle r and angle h have a sum that's equal to 90°.
<h3>What is a supplementary angle?</h3>
It should be noted that a supplementary angle simply means the angle that has a sun that's equal to 180°.
In this case, the angles are also vertical angles. Their sum isn't equal to 90°.
Therefore, the correct option is A.
Learn more about supplementary angles on:
brainly.com/question/12919120
