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: Question linked to image n ° 16 Patient of 84 years who presents an ulcerated tumor lesion that shows in the scalp of more than 20 years of evolution. No palpable locoregional adenopathies. Obviously the lesion must be biopsied for diagnostic confirmation but, a priori, which of the following diagnoses seems most likely? 
 Options:  <1> Merkel cell tumor. <2> Basal cell carcinoma. <3> Squamous carcinoma <4> Amelanotic malignant melanoma. <5> Cutaneous B-cell lymphoma
Example Output: 2

Example Input: Question: Epidemiology allows early detection of changes in the incidence of a certain disease in the population. For this, the most correct thing is to use: 
 Options:  <1> The etiological investigation. <2> The description of the natural history of the disease. <3> Epidemiological surveillance. <4> The evaluation of the functioning of the services. <5> None of the previous answers is correct.
Example Output: 3

Example Input: Question: In the synthesis of DNA, the quinolones act: 
 Options:  <1> Joining the double helix and thus blocking the progress of the replication fork. <2> Interlacing in the double helix and thus causing errors in the transcription. <3> On DNA gyrase. <4> As nucleotide analogs that are incorporated into DNA. <5> About DNA polymerases.
Example Output:
3