Select all of the negative things about living in an urban area Question 10 options: disease department stores hotels tall buildings high population density/ overcrowding sanitation problems crime HELP PLZ!!! IT"S THE LAST QUESTION AND I NEED HELP NOW

One of the things that allowed native americans in mexico to settle cities larger than those in areas to the north was "b. the development of cities that were built by an earlier civilizations," since mexico had been the home of some of the world's most advanced civilizations before the columbian invasion