Answer:
An independent judiciary is necessary to ensure the rule of law is respected. Judicial independence means that judges are not subject to pressure and influence and are free to make impartial decisions based solely on fact and law.
Explanation:
Price ceilings prevent a price from rising above a certain level. When a price ceiling is set below the equilibrium price, quantity demanded will exceed quantity supplied, and excess demand or shortages will result. Price floors prevent a price from falling below a certain level.
The answer would be choice C. Thomas Edison's recorded discussions with Ford on mass production. This source is a credible primary source because it is coming straight from the source.