Final answer:
The CISG applies to international contracts for the sale of goods. It does not cover service contracts or domestic sales of goods. The ICG hears disputes between countries.
Step-by-step explanation:
The United Nations Convention on Contracts for the International Sale of Goods (CISG) applies to C) International contracts for the sale of goods. It is a key instrument in international trade law designed to standardize transactions by providing a uniform set of rules for international sales contracts. The CISG facilitates trade by providing certainty and reducing legal barriers across national borders. It does not apply to the sale of services, whether international or domestic, nor does it cover domestic sales of goods.
For clarity, treaties and international agreements are indeed sources of international law, which reflects in frameworks like the CISG. The International Court of Justice (ICJ), often deals with disputes between countries (a. Cases involving disputes between countries), and generally does not hear cases involving human rights abuses or private citizens unless it pertains to issues between nations.