Which of the Following Is the Superior Strategy for Preventing

Which of the following is the superior strategy for preventing terrorists from obtaining WMD?

A) The United States declares that it will retaliate massively against any terrorists that use WMD.
B) The United States declares that it will attack any terrorist organization that obtains WMD,even if the weapons are not used.
C) The European Union (EU) negotiates with terrorist organizations to convince them the costs of using WMD are higher than the gains they will obtain.
D) The International Atomic Energy Agency promotes the norm of nonproliferation WMD.
E) The International Atomic Energy Agency helps countries make their nuclear facilities more secure.