Which of the Following Is True of Radical Theory's Beliefs

Which of the following is True of radical theory's beliefs about stability in the international system?

A) Instability is created when dominant powers are challenged by those just beneath them as the latter try to gain access to the former's resources.
B) Instability exists because an equal distribution of resources means that all states can potentially challenge others.
C) Instability exists because international organizations are difficult to establish in a stratified system, making mediation of conflicts difficult.
D) Radicals do not believe instability will occur because stratification creates a unipolar system.
E) Radicals do not believe instability will occur because the distribution of resources is fixed.