Some researchers believe that Chinese traditional agricultural culture is fundamentally different from European and American nomadic culture, and Japanese marine culture, which profoundly affects people's lifestyle and ideology, and also has a profound impact on national defense. Some Chinese people have a weak concept of national defense and the root cause of weakening Shangwu's spirit. Which of the following, if true, could weaken the above conclusion? ["The strength of a country's national defense depends on the strength of the military.", 'Some people regard "two acres of land, one cow, wife and children hot steamed buns" as their living goals.', 'Residual economic concepts of small farmers are the root cause of the weakening of the spirit of Shang Wu in the contemporary Chinese people.', 'The nation that admires agricultural culture is hardworking, intelligent, frugal, united, and righteous.']