【答案解析】解析：录音中的“choose the time of his own passing”，“made his decision to finish the journey”以及“voluntary euthanasia”都显示出这里讲的是一次自愿的安乐死(active euthanasia)。
【正确答案】
D
【答案解析】解析：录音讲到在获得了three signatures required from his own doctor，a cancer specialist and apsychiatrist之后，Dent便可以自由选择the time of his own passing了。