An international organization's research report on multilateral agreements states that multilateral agreements will significantly reduce trade costs by reducing the red tape of international trade. Among them, the trade costs of developed countries will be reduced by 10%, and the trade costs of developing countries will be reduced by 13%-15.5 %, And each 1% reduction in global trade costs will bring more than $ 4 billion in revenue to the global economy. The organization's analysis believes that the signing of multilateral agreements has greatly promoted the development of the global economy. Which of the following is true is most likely to question the organization's analysis:. ['Multilateral agreements signed have not been implemented in most countries.', 'After the signing of the agreement, the global trade volume has not changed significantly in the near future.', 'Global trade costs are not known from the trade costs of developed and developing countries.', 'Inconsistencies in the reduction in trade costs between developing and developed countries will affect the reduction in global trade costs.']