In Terms of the Right to Refuse Treatment in Canada

In terms of the right to refuse treatment in Canada:

A) There are some provinces that allow for treatment without the individual's consent.
B) There is a nation-wide policy that even if patients are civilly committed against their wishes, they can refuse treatment.
C) British Columbia and Alberta are the only provinces that maintain the patient's right to refuse treatment.
D) There is nation-wide policy for mentally disordered people to have a substitute decision maker who can provide consent when the individual cannot decide for themselves.