Final answer:
A doctor may release a person who has been admitted for 72-hour treatment under W.I.C 5150.
Step-by-step explanation:
Welfare and Institutions Code (W.I.C.) Section 5150 in California pertains to the involuntary psychiatric hold, often referred to as a "5150 hold." This allows for the involuntary detention and psychiatric evaluation of an individual deemed to be a danger to themselves or others due to a mental health disorder.
The correct answer is A doctor. Under W.I.C 5150, also known as the California Welfare and Institutions Code Section 5150, a person can be admitted for a 72-hour treatment for a mental health evaluation. The decision to release the person lies with the attending doctor responsible for their care.