One of the Biggest Roadblocks in Developing WTO Agreements on Agriculture

One of the biggest roadblocks in developing WTO agreements on agriculture has been

A) complaints by countries in the Global South that their farmers cannot compete with U.S. and European farmers, because of the subsidies U.S. and European governments provide.
B) complaints by the U.S. and European countries that they cannot compete with farmers in the Global South because of low farm worker wages.
C) complaints by the U.S. and European countries that they cannot compete with farmers in the Global South because of unfair subsidies by their governments.
D) people prefer to eat food grown locally.