C. Governments have a difficult time fine-tuning the economy by using fiscal policy because there are several time lags and these are often variable.
Explanation:
Fiscal policy includes two important tools, one is taxation and the other is government spending, the balance of which is essential for the sustainable economy, however the collection of expected tax and the nature of spending (also include the priorities) takes time and certain variable factors e.g. economic growth (GDP), employment, inflation, etc makes it difficult for the government to fine tune the economy.
It can fall between Federal Emergency Management Agency (FEMA) or the U.S. National Guard (depends if the head of government for said state declared the are as in a state of emergency.<span />
This is true that global staffing has created political issues such as questioning U.S. federal legislation that restricts the number of high-skilled workers admitted from other countries.