Vincent is in the final stage of lung cancer and is in a great deal of pain. He requests his physicians to put an end to his suffering by allowing him to die. After completing the required legal formalities, Vincent's wife administers a drug to end his life. This scenario illustrates _____.

A) temporary sedation
B) voluntary active euthanasia
C) passive euthanasia
D) physician-assisted suicide

Voluntary active euthanasia refers to the practice where a physician, or in this case, an individual with the patient's consent, actively administers a substance to cause the patient's death at their request. This scenario fits the description as Vincent's wife administers a drug to end his life following his request, distinguishing it from passive euthanasia (withholding or withdrawing treatment) or physician-assisted suicide (where the patient self-administers the lethal substance).