All cultures in the era of farming civilization are conservative, no exception, east or west. The profound reason is that in the manual production-based production method, "the old production method is maintained intact, but it is the past. The primary conditions for the survival of all industrial classes "(Selected Works of Marx and Engels). The profound qualitative changes in Western culture, especially the natural sciences after the Western Renaissance and the Industrial Revolution in the 18th century, have caused confrontation and conflict between China and the West And China's obvious backwardness in the development of natural sciences is rooted in the fact that the economic production methods and exchange methods of commodities based on machines have replaced the natural economic production methods based on manual tools. What is the right thing to understand in the above paragraph? ['The production method based on manual labor is the fundamental reason for the conservative nature of the culture in the era of farming civilization.', 'From the perspective of historical and cultural phenomena, analyze the underlying causes of the confrontation and conflict between China and the West.', 'Both the East and the West, in the feudal era, were dominated by farming civilization, so the East and West are conservative.', 'The qualitative change of the natural sciences has led to the antagonism and conflict between Chinese and Western cultures, and has triggered changes in the modes of production and exchange.']