Which of the following statements reflects upon the difficulty companies face when requiring international suppliers to follow environmental and human rights standards set by U. S. firms?

I had to look for the options and here is my answer:

There had been difficulties that companies encounter when asking international suppliers to adhere human and environmental rights standards that are implemented by the U. S firms and this is reflected upon when both culture and economics get involved into the fairness discussion about international suppliers who have business in US firms.