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: The ribosomal subunits are formed in the: 
 Options:  <1> Nucleoplasm. <2> Nucleolus <3> Nuclear sheet. <4> Nuclear pore. <5> Cytoplasm.

Ex Output:
2


Ex Input:
Question: Which of the following medications is an anti CD20 monoclonal antibody used in the treatment of rheumatoid arthritis? 
 Options:  <1> Alemtuzumab <2> Muromunab. <3> Abalizumab <4> Rituximab <5> Visilizumab.

Ex Output:
4


Ex Input:
Question: The INR (international normalized ratio) of a patient with chronic atrial fibrillation treated with Acenocoumarol is 4. This result indicates that: 
 Options:  <1> The appearance of ventricular arrhythmias should be controlled. <2> The patient is correctly anticoagulated. <3> Anticoagulation with heparin is more indicated. <4> There is a risk of thrombus formation. <5> Signs of bleeding should be assessed.

Ex Output:

5