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: According to the article 15 of the Law of Prevention of Labor Risks, it is NOT considered a principle in the preventive activity: 
 Options:  <1> Avoid the risks and fight them from their origin. <2> Adapt the job to the person. <3> Adopt measures that put individual protection before collective protection. <4> Substitute the dangerous for what it means little or no danger. <5> Training of workers
Example Output: 3

Example Input: Question: Aspirin is an inhibitor of the synthesis of: 
 Options:  <1> Sterols <2> Prostaglandins <3> Phosphoacylglycerides. <4> Arachidonic acid. <5> Glycerophospholipids.
Example Output: 2

Example Input: Question: A 36-year-old patient who came to the emergency room for pain and swelling in the epiphyseal region of the right tibia. The radiographic image is lytic, eccentric and insufflates the cortex. In which tumor lesion will one have to think as more probable? 
 Options:  <1> Osteosarcoma. <2> Tumor of giant cells. <3> Encondroma. <4> Osteoid osteoid <5> Chondrosarcoma.
Example Output:
2