What was the domino theory?

the opinion that war is just a game played between nations, but that it becomes horribly real to those taking part in it

the view that fighting in Southeast Asia was inevitable for the United States because the war was destined to happen

the belief that domination of Southeast Asia was a critical factor for the Western world to expand socialism

the theory that if South Vietnam became Communist, Communism would spread throughout the rest of Southeast Asia

last one

Explanation: the theory that a political event in one country will cause similar events in neighboring countries, like a falling domino causing an entire row of upended dominoes to fall.

the answer is b.2008 and 2012 were presidential election years.

when a country suffers, for example, a drought period, the market product is affected for a low offer, in this case, potatoes; the government has to tax to the households, which have to give more money for the potatoes which they consume, that situation make them consume substitute goods even through loans, it could increase the financial market movement and the inflationary phenomena, the business has to increase salaries in order to the employees could buy a more expensive food (potatoes) and in order to inflation tha business had to buy expensive supplies in the factor market, while the rest of the world have to gain more money to consume the same amount of potatoes.