【单选题】

After the investigations and ------- that are both necessary and inevitable after a calamity such as the recently ended crisis, it may turn out that authorities could have handled the problem in a less ------- way.
A．(A) observation... convenient

B．(B) analyses ... fashionable
C．(C) second-guessing ... costly
D．(D) footwork ... organized
E．(E) solutions... abstruse