Under the Accusatorial System Rationale,forced Confessions Violate Due Process,even If

Under the accusatorial system rationale,forced confessions violate due process,even if the confession is true,because:

A) forced confessions should be conclusively assumed to be unreliable.
B) the confession violates the Eight Amendment prohibition against cruel and unusual punishment.
C) under our system the state has the burden of proving guilt.
D) a forced confession may be unreliable.