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 main indication for using 4 drugs in the initial treatment of tuberculosis is:
Options: <1> Affectation of the central nervous system. <2> High prevalence of primary resistance to isoniazid. <3> Cavitated and extensive pulmonary tuberculosis with large bacillary load. <4> Disseminated tuberculosis associated with HIV infection. <5> Extrapulmonary tuberculosis in immunodepressed patients of any origin.

Ex Output:
2

Ex Input:
Question: If after establishing the confidence interval with respect to a difference between two independent means, we find that the zero value is not in the interval:
Options: <1> We can not make any decision regarding the null hypothesis of equality of means. <2> We can not reject the null hypothesis of equality between population means. <3> We must reject the null hypothesis of equality between population means. <4> We accept the null hypothesis of equality between the population means. <5> We reject the alternative hypothesis of equality between population means.

Ex Output:
3

Ex Input:
Question: Question linked to image No. 1 In the same patient, from the observation of the chest x-ray, it can be deduced:
Options: <1> That the patient has pulmonary metastases. <2> Suspected nosocomial pneumonia. <3> A failure (dehiscence) of the colonic anastomosis should be considered. <4> Suspicion of PET <5> You have an infection of the surgical wound.

Ex Output:
3