According to Professor Inbau, All of the Following Are Important

According to Professor Inbau, all of the following are important points concerning the importance of confessions except ______.

A) many criminal cases can be solved only through confessions or through information obtained from other individuals
B) suspects often will not admit their guilt unless subjected to lengthy interrogations by the police
C) successful police questioning requires sophisticated interrogation techniques that may be considered trickery or manipulative in ordinary police interactions with the public
D) police often resort to coercive tactics to extract a confession, although these can be considered unconstitutional