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 mammals, Toll-like receptors (TLRs) are receptors: 
 Options:  <1> Signaling. <2> Antigenic <3> Of histocompatibility alleles. <4> Of phagocytosis. <5> Of chemokines.

Ex Output:
1


Ex Input:
Question: Indicate which of the following will be the most likely diagnosis if an individual has a lipoprotein lipase deficiency: 
 Options:  <1> Type I dyslipidemia <2> Type IIa dyslipidemia. <3> Type III dyslipidemia. <4> Abetalipoproteinemia. <5> Tangier disease.

Ex Output:
1


Ex Input:
Question: In what type of hearing loss is the phenomenon of recruitment or recruitment characteristic? 
 Options:  <1> Transmission hearing loss. <2> Mixed hearing loss. <3> Central hearing loss. <4> Retrocochlear hearing loss. <5> Cochlear hearing loss.

Ex Output:

5