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 gluten-free diet is the cornerstone in the treatment of celiac disease. In this regard, there are numerous products manufactured with an uncertain composition in terms of gluten, often being misleading labeling. Of the following food groups, which one can we consider completely safe in the diet of a celiac patient? 
 Options:  <1> Canned meat: Hamburgers, meatballs. <2> Milk and derivatives: yogurt, cheese, cream, curd. <3> Sauces, condiments and food additives. <4> Integral pasta: noodles, macaroni, noodles. <5> Delicatessen products, sausages, pâtés.
[EX A]: 2

[EX Q]: Question: What amino acids can be bound to a sugar by an O-glycosidic bond? 
 Options:  <1> Ser and Thr. <2> Cys and Ser. <3> Asn and Thr. <4> Lys and His. <5> Val and Leu.
[EX A]: 1

[EX Q]: Question: Which of the following transducers are not suitable in Atomic Mass Spectrometry? 
 Options:  <1> Electron multiplying channels. <2> Faraday Cup <3> Photo plates. <4> Scintillation detectors. <5> Photomultiplier tubes.
[EX A]:
5