Which of the following statements is true?
◦ The economic, legal, political, social, and cultural environments differ across countries.
◦ The import quotas and tariffs remain the same across all countries according to the standards set by United Nations.
◦ The advances in telecommunications and transportation, the availability of materials and skilled labor does not differ significantly across countries.
◦ The fixed rate policy is followed across all countries to avoid price fluctuations and inflation.