Which of the Following Can Be Committed Against Their Will

Which of the following can be committed against their will to a psychiatric hospital?

A) Carole, who has schizophrenia and will not take her medications because they make her feel ill.
B) Tina, who has schizophrenia and is homeless.
C) Kathie, who has schizophrenia and has been threatening to hurt people on the street.
D) Any of these three, schizophrenia is a serious enough disorder for the person to be forced into the hospital.