Which statement, if True, best undermines Daniel Bell and Francis Fukuyama?

Question

Quizplus · Accepted Answer

Both Daniel Bell and Francis Fukuyama argue that capitalism represents the final stage of human economic development and that socialist alternatives are no longer viable or realistic. However, if many nations have varying forms of socialism or have adopted hybrid economic models, then this undermines the idea that capitalism has definitively triumphed and demonstrates that socialist alternatives still exist in some form.

Which Statement, If True, Best Undermines Daniel Bell and Francis