What was an effect of Eads's jetty system? O It eliminated the deep waterway connecting the Port of New Orleans to the Gulf.
O Sediment began to build up in New Orleans's most important waterways.
O More goods were able to be shipped as transportation became more reliable.
O Railroads became more popular as fewer companies used waterways for shipping.

c

Explanation:

a) it is located in central mexico.

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.