The Incas kept control over the people they conquered by creating fear among the people and also: *
A. Making sure that the people had the things they needed
B. Making sure that the people knew they were being watched
C. Making sure that the people knew they would be punished
D. Making sure that the people were afraid of surrounding villages

i would say b. research typically uses a variety of sources

you should think about the answers you give and expect the same form your questions.

this headline suggests that midterm congressional   elections are at the corner and trump administration wants to activate his base by vowing to clamp down on immigrants and immigration as trump had said during his election campaign around two years ago. when a baby is born in usa, the baby becomes citizen of usa for 85 years and trump wants to end this rule of birthright citizenship to control illegal immigration and this what he said in an interview""we’re the only country in the world where a person comes in and has a baby, and the baby is essentially a citizen of the united states for 85 years, with all of those benefits,” "

an informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.