ormal trade relations are defined as follows A. A principle requiring WTO member states to treat products from other WTO member states in the same manner as like domestic products B. A principle requiring WTO member states to provide non-discriminatory treatment to like products originating in other WTO member states C. A principle requiring states to normalize trade relations with WTO member states before they can join the WTO D. A principle allowing WTO member states to discriminate between like products originating in other WTO member states if such discrimination is deemed normal with respect to the product at issue