Rice and indigo the main cash crops of South Carolina needed the right kind of climate and techniques to be cultivated these requirements led to the rise of

slavery

Explanation:

With the Carolinas being very economically motivated, through rice and indigo cultivation, there were lots of exports, there was a need for slave labor. As more European migrants came to America and more crops were planted, there was an even bigger need for slaves, hence this led to the rise of slavery.

the section of the chart that represents a point at which a bill needs approval from a majority of people in both chambers to advance is j, as this is the only section before the bill becomes law which has both rows (symbolizing the chambers) converging into one, meaning that the two parts of the congress have to approve of it before it can march on with the process.