Which kinds of ruins, left by the Mississippian culture, BEST indicate that late in its existence, its people experienced widespread warfare? A
temples

B
trenches

C
earthen mounds

D
defensive structures

Trenches because they were used in war

It could be anything, recent improvements in technology/telecommunication/internet have increased the pace of globalization.generally, it has something to do with technology. globalization means that people around the world are brought together through technology which speeds things up. so maybe some of those options could be correct. : )