【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