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: Pyruvate carboxylase is allosterically activated by one of the following compounds, what is it?
Options: <1> Pyruvate. <2> Acetyl-CoA. <3> Malate. <4> Oxalacetate. <5> NAD +.
Example Output: 2

Example Input: Question: Mr. A. P. has been discharged after being operated on for a gastric resection. What recommendations should you give to avoid the rapid evacuation syndrome?
Options: <1> Drink liquids during the meal. <2> Take a diet high in carbohydrates. <3> After ingestion, the decubitus position is the most beneficial if the patient tolerates it. <4> You should plan rest periods of 15 minutes after meals. <5> Take a diet low in protein and fat, to avoid abdominal distension.
Example Output: 3

Example Input: Question: The black indicator of Eriochrome T (N.E.T.) has the following colors depending on the pH:
Options: <1> H2Inrojo, HIn2- blue, In3- orange and when complexed with metal it is red. <2> H2Inazul, HIn2- red, In3- orange and when complexed with metal it is red. <3> H2Inrojo, HIn2- blue, In3- red wine and when complexed with metal it is orange. <4> H2In-red, HIn2- orange, In3- blue and when complexed with metal it is orange. <5> H2Inazul, HIn2- orange, In3- red and when complexed with metal is orange.
Example Output:
1