Researchers in Pu'er, Yunnan, studied the effects of climate change factors such as the monsoon rainy season, high temperature and drought on the growth environment and quality value of tea. They traced back the factors that caused the change of chemical substances in tea, and found that during the rainy season, when their growth rate accelerated, The main content of catechins and methylxanthines is only half of the dry season. Therefore, researchers believe that climate change will affect the beneficial chemical content of Yunnan Pu'er tea. Which of the following, if true, would best support the above argument? ["Pu'er tea leaves may also decrease in useful chemical substances due to factors other than climate change such as pests and other biological invasions.", "The impact of climate change on the beneficial chemical composition of other crops in Pu'er tea producing areas varies widely, or it is obvious, or it is hardly affected.", 'Puer tea leaves contain higher secondary metabolites in the dry season, but if the dry season lasts too long, it may decrease its content.', "After testing, in the past five years, the content of beneficial chemical components in Pu'er tea leaves in a mountainous area in Yunnan has little difference between the rainy and dry seasons."]