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 Müller cells of the retina are: 
 Options:  <1> Modified neurons. <2> Glandular <3> Neurogliales of support. <4> Of the microglia. <5> Of the pigmentary layer.
[EX A]: 3

[EX Q]: Question: It has superficial cells with abundant glycogen: 
 Options:  <1> Language. <2> Esophagus. <3> Thin skin <4> Vagina. <5> Thick skin.
[EX A]: 4

[EX Q]: Question: What neurotransmitter has a type of receptor called muscarinic ?: 
 Options:  <1> Acetylcholine <2> Dopamine <3> Serotonin <4> Noradrenaline <5> Adrenalin.
[EX A]:
1