Detailed Instructions: 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'.
Q: Question: What are the characteristics of the obfuscation of consciousness ?:
Options: <1> Total absence of consciousness that occurs due to illness or brain damage. <2> Transient narrowing of consciousness, of variable duration, with amnesia of what happened during the period. <3> Sleep-like state that is accompanied by intense visual hallucinations. <4> Deep disorder of qualitative and quantitative nature with psychomotor agitation. <5> Reduction of the ability to identify and recognize the environment with attentional difficulties and the course of thought.
A:
5