The term used to describe a sudden fall of a government, brought about by illegal force is called

credit squeeze
loup de' etat
deficit financing
deflation

The correct answer is: B. coup d’état.

A coup d’état (French pronunciation: [ku dɛˈta]; French for “stroke of state”, from coup “blow” and état “state”) is the sudden overthrow of an existing government by a small group of people, typically the military.

A credit squeeze is a monetary policy tool used by central banks to reduce the money supply. It is achieved by raising interest rates, which makes it more expensive for businesses and consumers to borrow money.

Deficit financing is a government’s policy of spending more money than it takes in through taxes and other revenue. This can be done by borrowing money, printing money, or selling assets.

Deflation is a decrease in the general price level of goods and services. It can be caused by a number of factors, including a decrease in the money supply, a decrease in aggregate demand, or an increase in aggregate supply.