How were many nobles treated under ivan the terrible? a. they were given large pieces of property to own. b. they were honored with positions of power. c. they were opposed or murdered. d. they were forced to become serfs.

I believe the answer best answer is C. They were opposed or murdered because everyone hated Ivans rule anyone who took part in it

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.