A market survey report in a city shows that the average spending of cosmetics by residents in this city is 10% higher than the previous year (after deducting price increases), which shows that the consumption of residents in this area has a rising trend. Assuming the following options are true, what will most weaken the conclusion? ['Residents pay more and more attention to appearance.', 'Consumers enter the store after careful thinking, and their choice of cosmetics is getting more and more haircut.', "Due to the slow economic growth, the growth rate of residents' per capita income has slowed down.", 'Residents increasingly prefer natural cosmetics, complaints about counterfeit and inferior cosmetics are increasing.']