A World Trade Organization (WTO) member country must offer to all other member countries:

A) common market guarantees.
B) the same trade concessions.
C) the same basket of commodities.
D) import substitutions.
E) the same resources with equal efficiency.

A WTO member country must offer the same trade concessions to all other member countries. This is known as the principle of nondiscrimination or most-favored-nation (MFN) treatment. Under this principle, any advantage, favor, privilege, or immunity granted by a WTO member to a product originating from or destined for any country must be extended immediately and unconditionally to the like product originating from or destined for all other WTO member countries. This means that a WTO member cannot discriminate between its trading partners, and must treat them all equally in terms of market access and trade opportunities.