Researchers have bred some kind of fry in normal seawater and seawater containing twice the carbon dioxide concentration. The fry grows up and is put into a maze. Whenever they encounter obstacles, the fish that hatch in normal seawater will choose the right one, However, fish that hatch under high carbon dioxide concentrations randomly choose to turn left or right, so that this fish has less chance of survival when it encounters natural enemies. Therefore, researchers believe that in high carbon dioxide environments Hatching fish will weaken their ability to survive. Which of the following, if true, cannot support that conclusion? ['About one-third of the carbon dioxide produced by humans burning fossil fuels is absorbed by the oceans on Earth, which makes the seawater gradually acidify, which will soften the shell and bones of marine life.', 'Low oxygen levels in marine areas with high levels of carbon dioxide. Less oxygen makes it difficult for marine life to breathe, foraging, avoiding predators, and breeding offspring become more difficult.', 'Carbon dioxide is an important nutrient for many marine plants. They convert the carbon dioxide absorbed by the leaves and the water transported by the roots into sugar, starch, and oxygen under sunlight.', 'The clownfish juveniles are raised in seawater with high carbon dioxide concentration, and the sounds made by natural enemies are played. As a result, the group of small fishes cannot hear the sound.']