The president signs legally binding nuclear arms terms with Iran without seeking congressional approval is an example of an .

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.

a would be the answer

answer; biological;

answer; win because bill had a legal right to drink alcohol;