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: ADH increases the osmolality of the renal interstitial medium because it increases: 
 Options:  <1> The permeability to urea in the collector tube. <2> The water permeability of the ascending loop of Henle. <3> The flow in the straight vessels. <4> The reabsorption of NaCl in the collecting tubule. <5> The renal excretion of water.
Example Output: 1

Example Input: Question: The eudismic index is a parameter with pharmacological interest that expresses the relationship between: 
 Options:  <1> Two diastereomer drugs. <2> Two bioisostero drugs. <3> Two enantiomers <4> A drug and a prodrug, structural analog. <5> Two structural modifications, one hydrophilic and one lipophilic, of a certain drug.
Example Output: 3

Example Input: Question: A 70-year-old woman, worried about her risk of having a stroke, comes to our office because her mother died of this cause a year ago. He has a history of high blood pressure and type 2 diabetes mellitus, so he is being treated with glipizide, aspirin, enalapril and atorvastatin. He smokes 20 cigarettes a day and does not exercise regularly. On examination, a blood pressure of 150/80 mmHg is detected. The analytical highlights a hemoglobin A1c of 8% and an LDL cholesterol of 110 mg / dl. Which of the following is associated with a greater reduction in stroke risk? 
 Options:  <1> Achieve optimal levels of hemoglobin A1C. <2> Achieve an optimal control of blood pressure. <3> Add an antioxidant to the treatment. <4> Abandon tobacco <5> Achieve optimal levels of LDL.
Example Output:
2