From what did Americans take comfort after the terrorist attacks of September 11, 2001?A) the heroism of rescue workers and hijacked airplane...

Normally, I would argue that a textbook or a course
syllabus would be best in answering a multiple choice question like this.  Yet, I will
go out on a limb and argue that A could be the only
possible answer.  It should be noted that I think it was difficult to find anything that
Americans were able to take a real comfort from on that sad day, but A would be the
closest one.  Rudy Giuliani was the mayor on September 11, so B is eliminated.  The
apprehension of "the terrorist" was anything but quick.  Zaccarias Moussaui's
apprehension did not bring any closure because he was not "the terrorist" responsible. 
In fact, one could argue that the recent killing of Osama Bin Laden a couple of weeks
ago would be the closest element to "apprehending" the "terrorist responsible" because
the rest of the terrorists died on the planes.  President Clinton was not in office at
the time, which makes D a non option.  I think that A would have to be the most logical
choice of the four.