instruction:
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:
Question: It has superficial cells with abundant glycogen: 
 Options:  <1> Language. <2> Esophagus. <3> Thin skin <4> Vagina. <5> Thick skin.
answer:
4


question:
Question: Which of the following covalent bonds does not appear in proteins ?: 
 Options:  <1> Phosphodiester linkage. <2> Amide link. <3> O-glucosidic bond. <4> Disulfide bond. <5> Hydrogen bond.
answer:
1


question:
Question: The determination of cyanide by the Liebig method is based on the addition of a silver nitrate standard solution: 
 Options:  <1> Until complete precipitation of silver cyanide. <2> Until the precipitation of silver cyanide begins. <3> Until the appearance of a red precipitate of silver chromate. <4> Until the AgCN complex is quantitatively formed. <5> Until the precipitation of silver iodide, yellow.
answer:

2