Which describes the revisionist or conflict perspective in historiography?

a. historical perspectives change over time depending upon the biases of the writer.

b. history is impossible to record accurately without primary source documentation.

c. history is and should be recorded as it happens, as factual and fixed information.

d. history is recorded most accurately according to the experts of the time period in question.

e. history should be recorded from either a top down or bottom up perspective

a.

congress passed laws allowing for free passage between states.

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.