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'.

Example Input: Question: Which of the following staining techniques is important in the diagnosis of infections caused by Corynebacterium diphtheriae? 
 Options:  <1> The capsule staining. <2> Staining of metachromatic granules. <3> The acid-alcohol resistance stain. <4> Negative staining <5> The staining of endospores.
Example Output: 2

Example Input: Question: Regarding intestinal polyposis, which of the following syndromes is NOT hereditary? 
 Options:  <1> Gardner syndrome. <2> Cronkhite-Canada syndrome. <3> Turcot syndrome. <4> Juvenile polyposis <5> Peutz-Jeghers syndrome.
Example Output: 2

Example Input: Question: Thiamine pyrophosphate (PPT) is not coenzyme of: 
 Options:  <1> Pyruvate dehydrogenase (synthesis of acetyl CoA). <2> Alpha-ketoglutarate dehydrogenase (citric acid cycle). <3> Transketolase (pentose phosphate pathway). <4> Transaldolase (pentose phosphate route). <5> Pyruvate decarboxylase (ethanolic fermentation).
Example Output:
4