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: The formation of the complex called Aminophylline improves the solubility of one of the following drugs: 
 Options:  <1> Theophylline <2> Digoxin <3> Ampicillin <4> Thioridazine. <5> Ciclosporin
Example Output: 1

Example Input: 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.
Example Output: 2

Example Input: Question: In relation to DNA replication, the term processivity indicates: 
 Options:  <1> Error rate of the polymerase. <2> Deletion of one or more bases in the DNA. <3> Specificity in the speed of replication. <4> The ability of the enzyme to catalyze multiple consecutive reactions without detaching from the substrate. <5> 1,2 and 3.
Example Output:
4