Which phrase describes a tactic that a lobbyist would use to influence public policy

73637 is not the answer cuz i don’t know

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

Ibelieve that it would be b because its the one that sounds the most correcttell me if you get it right : )   

The correct answer in my opinion is "u.s. government attempt to open up the black hills to development.  "