The _____ establishes a uniform set of rules governing certain aspects of the making and performance of everyday commercial contracts between sellers and buyers who have their places of business in different nations.
选项：

A: Trade-Related Aspects of Intellectual Property Rights (TRIPS)
B: Paris Convention for the Protection of Industrial Property
C: United Nations Convention on Contracts for the International Sale of Goods (CIGS)
D: World Trade Organization (WTO)