According to the author, who should shoulder the major responsibility for allowing the 9/11 tragedy to happen

A．Al Qaeda terriorists had gained support from at least one of the governments.
B．9/11 was the chief reason for the Bush government to initiate both wars.
C．The two wars had already cost the Americans tens of millions of dollars.
D．These two countries should be held responsible for 9/11.

A．He had been intentionally misleading as to the reasons of initiating the two wars.
B．He had been late in preventing the attacks because of a personal vocation.
C．He had done everything to help the 9/11 commission do a better job.
D．He will have probably failed to be reelected if the public had been well informed.