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: In the framework of the treatment of Generalized Anxiety, we distinguish (eg, Dugas and Ladouceur, 1997) between concerns about events based on reality, in which case the patient would be trained in problem solving, and concerns about events not based on reality and highly improbable that should be addressed by employing:
Options: <1> Cognitive functional exposure. <2> Applied relaxation <3> Distraction techniques. <4> Meditation. <5> Self instructions

Ex Output:
1

Ex Input:
Question: The determination of cyanide by the Liebig method is based on the addition of a silver nitrate standard solution:
Options: <1> Until complete precipitation of silver cyanide. <2> Until the precipitation of silver cyanide begins. <3> Until the appearance of a red precipitate of silver chromate. <4> Until the AgCN complex is quantitatively formed. <5> Until the precipitation of silver iodide, yellow.

Ex Output:
2

Ex Input:
Question: What is the most important prognostic factor in Stage 1 Melanoma?
Options: <1> Serum LDH level. <2> Tumor thickness measured in the Breslow index. <3> The presence of clinical or histological ulceration. <4> Number of metastases. <5> The mitotic index. The mitotic index.

Ex Output:
2