Answer:
B- voluntary
Step-by-step explanation:
A confession must be voluntary in order to be valid in court because involuntary confessions are often considered unreliable and potentially coerced through improper police conduct, such as coercion, threats, or promises of leniency. Voluntary confessions, on the other hand, are considered more trustworthy because they are given willingly and without any undue pressure or influence. As a result, courts typically require that a confession be given voluntarily in order to be admissible as evidence in a criminal trial.