The National Security Documents Leaked by Edward Snowden in 2013

The national security documents leaked by Edward Snowden in 2013 revealed that the

A) NSA was collecting private data,such as phone calls,email messages,and web browser history,on millions of Americans and foreign nationals.
B) Bush administration misrepresented intelligence information about nuclear weapons in order to justify the 2003 Iraq War.
C) September 11,2001,attacks could have been prevented with better information sharing between the FBI,CIA,and NSC.
D) CIA was violating international law by using "enhanced interrogation techniques" against suspected terrorists.