You will be given a definition of a task first, then some input of the task.
In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.

Question: The state characterized by a total absence of consciousness, muscle laxity, absence of response to painful stimuli and posterior lacunar amnesia, is called:
Options: <1> Drowsiness. <2> Mental absence <3> Stupor. <4> Coma. <5> Obnubilation.
Output:
4