The North's economy was more industrial, while the southern economy was based on __ grown using slave labor. tobacco indigo rice cotton

## Step 1<br />The question is asking us to identify the crop that the Southern economy was based on, which was grown using slave labor. The options provided are tobacco, indigo, rice, and cotton.<br />## Step 2<br />The Southern economy was heavily reliant on agriculture, particularly the cultivation of crops that were labor-intensive. This labor was provided by slaves.<br />## Step 3<br />Among the options provided, cotton was the crop that was most heavily reliant on slave labor. The cultivation of cotton was labor-intensive and required a large number of slaves to work the fields.