Citizens who were part of the new south would be most likely to

The answer is: .admire the culture of European cities.

The term 'new south' was given to the southern states after they implemented   both technological and social modernization into their area.

At that time, we copy most of  technological advancement and social policies from European cities (such as London). This is why citizens of new south would most likely admire culture of European cities.

which statement explains one of the reasons world war 1 was so much more destructive than earlier conflicts