There are more than 130 companies producing infant formula in China, while there are only 4 companies in the United States. In contrast, the number of infants eating formula in the United States is much higher than in China. "Imagine if there were only 4 companies producing formula Enterprises will cherish their brand value and continuously strengthen their awareness of food safety. Any possible food safety risks are intolerable by the enterprises themselves. It is unthinkable that problems such as melamine occur. ". Which of the following, if true, would most weaken this view? ['A company is a well-known manufacturer of infant formula in the United States, and found that melamine was found in a brand formula that they produced.', 'There are more than 90 infant formula manufacturers in a country, and most of them have not detected melamine in their formula.', 'A company is a well-known manufacturer of dairy products in China. Its brand value is high, but melamine was found in the dairy products it produced.', 'There are too many companies producing infant formula in our country, and brand value is not important to companies, so these companies dare to add melamine to milk powder.']