based on the graph which industries decline, would hurt the southern economy the most

The industries that would hurt the southern economy the most based on the graph are likely manufacturing and utilities. Both of these industries show a noticeable decline in employment over the period represented in the graph. Manufacturing is a significant contributor to the southern economy, particularly in states like Georgia, Alabama, and Tennessee. A decline in this sector could have a negative impact on the region's overall economic health. Similarly, a decline in the utilities sector could also have a detrimental effect on the southern economy, as reliable and affordable energy is crucial for businesses to operate successfully.