Which of the following was an accomplishment of the zhou dynasty in ancient china? a. establishing a merchant social class b. creating bronze metalwork c. creating horse-drawn chariots d. using oracle bones to make predictions

a. establishing a merchant social class. took the test.

the answer is a wheel

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.