Why was the term political machine used to describe corrupt political systems in the late 1800s?

This is because they hired an organized group of people to handle their political campaigns with the objective of securing their nomination through any means possible.  Some of the tactics they employed were unfair and sometimes used to gain influence of  the wealthy and powerful to push their propaganda.

could you send me the choices?

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.