Which organization provides staff assistance for the chief executive, to coordinate the executive bureaucracy, and contains offices such as the office of the vice president and the white house office?

Executive Office of the President

Explanation:

Executive Office of the President of USA is described as the group of organizations that are in the middle of the executive branch of US federal government. The E.O.P tends to mostly help with the work of president.

The Executive Office of the President is mostly referred to as the permanent government, with several policy and agendas , and individuals who tends to implement these. It was formed by Franklin D. Roosevelt.

answer; i believe its (d) intrinsic;

muslims control the north africa during the period of 1500 up

to 1800. they made a barrier to prevent further european exploration from

entering the africa from the north. however, the dutch ware still able to move

toward the interior with having south africa as one of the routes leading to

the east for trading with asia.