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: In the path that leads in the liver to acetoacetate biosynthesis from acetyl CoA, which of the following substances is the immediate precursor of acetoacetate? 
 Options:  <1> 3-Hydroxybutyrate <2> Acetoacetyl CoA. <3> 3-Hydroxybutyrate CoA. <4> Mevalonic acid. <5> 3-Hydroxy-3-methylglutaryl. CoA.
5

Question: What do you usually associate with the cataplexy characteristic of narcolepsy? 
 Options:  <1> With sleep paralysis. <2> With intense emotions. <3> With hypnagogic and hypnopompic hallucinations. <4> With daytime sleepiness. <5> With irregular schedules.
2

Question: The lesion at the level of the posterior roots of the spinal cord produces: 
 Options:  <1> Affectation of all forms of sensitivity in metameric and ipsilateral distribution. <2> Homolateral involvement of all forms of sensitivity below the point of injury. <3> Thermoanalgesia of metameric and bilateral distribution. <4> Thermoanalgesia below the lesion and contralateral. <5> Deep anesthesia below the lesion and contralateral.

1