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 Input:
Question: Transketolase catalyzes the transformation of ribose-5-phosphate and xylulose-5-phosphate into:
Options: <1> Two molecules of ribulose-5-phosphate. <2> Sedoheptulose-7-phosphate and glyceraldehyde-3-phosphate. <3> Fructose-6-phosphate and erythrose-4-phosphate. <4> Glyceraldehyde-3-phosphate and glucose-6-phosphate. <5> 6-Phosphogluconate and glyceraldehyde-3-phosphate.

Ex Output:
2

Ex Input:
Question: The recommended antibiotic treatment for acute diarrhea caused by Clostridium difficile is:
Options: <1> Administer vancomycin orally. <2> Administer vancomycin intravenously. <3> Administer ciprofloxacin orally. <4> Administer metronidazole orally. <5> Administer rifaximin orally.

Ex Output:
4

Ex Input:
Question: In relation to the risk factors of cardiovascular diseases, which of the following statements is NOT correct?
Options: <1> Regarding LDL cholesterol, the therapeutic objective depends on the global cardiovascular risk. <2> Type 2 diabetic patients should be considered at high cardiovascular risk and the objective in terms of LDL cholesterol should be <100 mg / dL. <3> There is not enough evidence that low levels of HDL cholesterol suppose a cardiovascular risk factor. <4> The important thing about the risk associated with hypertension is that it improves when blood pressure is reduced regardless of the type of drug used. <5> The existence of coronary disease in the family is a risk factor for the patient.

Ex Output:
3