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: 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: As an immunoanalytical technique, flow cytometry is mainly based on the detection of signals: 
 Options:  <1> Chemiluminescent <2> Fluorescent <3> Bioluminescent <4> Piezoelectric. <5> Magnetic
[EX A]: 2

[EX Q]: Question: The goblet cells belong to the tissue: 
 Options:  <1> Epithelial. <2> Conjunctive. <3> Cartilaginous. <4> Osseous. <5> Adipose.
[EX A]:
1