In the past fifty years, the per capita living standard of a certain place has been below the poverty line, so it can be expected that the living standard of the per capita of the place will remain low in the next few years. If the following options are true, what will most weaken the conclusion? ["The country has been granting preferential policies to the region for the past ten years to protect and improve people's lives.", 'The executive leadership team in the region is facing a change of office, and a large number of officials with experience in successful poverty reduction are about to take office.', 'A geological expert speculates that there is a large amount of oil in the ground.', 'According to rumors, the place will be planned as a satellite city in the capital.']