Which composer was known by many names? A. Victoria
B. Gabrieli
C. Lassus
D. Praetorius

The three sociological perspectives include the beginner’s mind, culture shock, and the sociological imagination

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.