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'.

[EX Q]: Question: The pyramidal neurons are in: 
 Options:  <1> Cerebellum. <2> Brain. <3> Spinal cord. <4> Spinal ganglia. <5> Hypophysis.
[EX A]: 2

[EX Q]: Question: Question linked to image no. 9 To rule out situations that may simulate the patient's manifestations and establish a differential diagnosis, we must continue with the interrogation. One of the following habits or antecedents would be difficult to relate to the facial alterations observed. Point out which one. 
 Options:  <1> Habit of stretching the hairs (trichotillomania). <2> A sexually transmitted disease <3> Contact with people or geographic areas with leprosy. <4> Drug intake. <5> History of hyperuricemia.
[EX A]: 5

[EX Q]: Question: Acetyl-CoA: 
 Options:  <1> It is synthesized from pyruvate in the eukaryotic cytoplasm. <2> It has a phosphate bond rich in energy. <3> Presents a guanine nucleotide in coenzyme A. <4> Activates pyruvate carboxylase and inhibits pyruvate dehydrogenase. <5> It easily crosses the mitochondrial inner membrane.
[EX A]:
4