I believe the answer is: Division of Labor.
Division of labor is always necessary because one part of the economic operation wouldn't be able to done without the completion of other parts, no matter how small it is.
For example, a manager of a big restaurant wouldn't be able to fulfill their revenue goals if the cashiers do not keep the money properly.
Answer:
d) mental traces of things we see
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Answer:
OMB defines earmarks as funds provided by the Congress for projects or programs where the congressional direction (in bill or report language) circumvents the merit-based or competitive allocation process, or specifies the location or recipient, or otherwise curtails the ability of the Administration to control
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Answer: National government sharing powers is what it means in the U.S
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