Marilyn suffers a severe stroke and irreversible brain damage. her husband decides to remove all life support and, subsequently, marilyn dies. this is an example of

This is an example of "passive euthanasia."

Passive euthanasia is when demise is achieved by an oversight - i. e. when somebody gives the individual a chance to let the person die. This can be by pulling back or withholding treatment: Withdrawing treatment: for instance, turning off a machine that is keeping a man alive, so incredible their illness.