The peaceful coexistence of mankind is an unachievable ideal. Statistics show that since 1945, 12 battles have been fought every day, including international wars of all sizes, and armed battles in the civil war. Which of the following, if true, would best challenge the above conclusion? ['From 1945 to this century, diplomatic restraint has been shown between countries and border conflicts have rarely occurred.', 'Modern warfare focuses on deterrence rather than attacks, such as the intensifying nuclear arms race and the resulting Cold War between the East and West.', 'Since human beings, human conflicts for resources and territory have not stopped.', 'A total of 30 wars broke out in the world in the 1960s, and less than 10 wars in the 1980s.']