Where was the King’s order to the Sheriff of Somerset witnessed? A. Trowbridge
B. Marlborough
C. London
I begging you to hurry to answer 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.