Currently in the United States, Patients Who Are Criminally Committed

Currently in the United States, patients who are criminally committed to a mental hospital can be released:

A) only after they have been hospitalized an amount of time equal to the time they would have spent in prison.
B) only when they are judged to be no longer dangerous.
C) when they are no longer considered insane.
D) after they have spent time in a halfway house.