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: 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

Example Input: Question: Alveolar pressure exceeds atmospheric pressure: 
 Options:  <1> In the initial phase of inspiration. <2> In the middle phase of inspiration. <3> In the middle phase of an expiration. <4> At the end of expiration. <5> At the end of the inspiration.
Example Output: 3

Example Input: Question: Heparin is: 
 Options:  <1> A plasma protein with no net charge with coagulant function. <2> A glycosaminoglycan with high density of sulphate groups in its structure and anticoagulant function. <3> A protease that facilitates the transformation of prothrombin into thrombin. <4> An extracellular matrix protein with no net charge, which gives rise to highly viscous solutions with a lubricating function. <5> A homopolysaccharide with anticoagulant function thanks to the high density of positive charges in its structure.
Example Output:
2