What legal case determined that patients have a right to refuse treatments and the right to use an appeal process?

Choice A reason: Durham v. U.S. established the “Durham Rule” for criminal responsibility related to mental illness, not patient treatment rights. Choice B reason: O’Connor v. Donaldson addressed involuntary hospitalization and the right to liberty, but not specifically the right to refuse treatment or appeal. Choice C reason: Rennie v. Klein established that patients have the legal right to refuse treatment and to appeal treatment decisions, directly addressing patient autonomy and informed consent. Choice D reason: Dusky v. U.S. established competency to stand trial standards in criminal proceedings, not treatment refusal rights.