Task: Question Answering
Input (English): Question: What is the name of the set of dysregulations of the neurovegetative nervous system and of the basic psychic functions, which persist for a long period of time, months or years, after achieving abstinence? 
 Options:  <1> Cross tolerance <2> Korsakoff syndrome. <3> Acute intoxication. <4> Late withdrawal syndrome. <5> Dual disorder.
Output (English): 4