Final answer:
The correct answer is the Public Hospitals Act, as it pertains to the hospital setting where nursing is practiced, though the actual governing statute for nursing in Ontario is the Nursing Act. The other listed options do not directly regulate the nursing profession.
Step-by-step explanation:
The statute relevant to the practice of nursing in Ontario is the Nursing Act, which is not explicitly listed in the provided options. However, if we must choose from the given alternatives, the Public Hospitals Act is the most applicable to the practice of nursing, even though it is not a statute that directly governs the nursing profession. The Nursing Act establishes the regulatory framework for the nursing profession, including the standards of practice, the professional conduct of nurses, and the mandate of the College of Nurses of Ontario. The Public Hospitals Act does not govern the profession of nursing directly but affects nursing practice within the hospital setting. Consequently, none of the listed options, including the Pharmacy Act, Medicine Act, or Midwifery Act, specifically regulate nursing in Ontario.