The Free and Voluntary Rule Requires Suppression of Confessions

The free and voluntary rule requires suppression of confessions:

A) obtained by lying to the suspect about the strength of the evidence linking him to the crime.
B) induced through a promise that the suspect will receive a lighter sentence if he or she confesses.
C) that result from a delusional mental illness that robs the suspect of the ability to make a rational choice.
D) all of the above.