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: The use of monolithic columns and continuous beds in liquid chromatography is already very common. To this end: 
 Options:  <1> Microporous membranes are used so that the interaction between a solute and the matrix takes place in the final part of the pore. <2> A separation medium is introduced with a greater degree of continuity than the stationary particle phase so that the mobile phase is forced to traverse the large pores of the medium, improving mass transport. <3> Monodisperse particles are used as a stationary phase in order to improve mass transfer. <4> Flexible organic gels are used from microporous polymers in order to decrease the flow rates. <5> Columns filled with small particles of polymerized silica are used.
Example Output: 2

Example Input: Question: The transmembrane proteins that bind to intracellular and extracellular proteins are: 
 Options:  <1> Ocludines. <2> Cadherins. <3> Actins. <4> Integrins <5> Desmocolinas.
Example Output: 4

Example Input: Question: The inability to recognize faces, preserving the sense of sight, is called: 
 Options:  <1> Binocular disparity <2> Hemiplegia <3> Dysphasia <4> Prosopagnosia <5> Apraxia
Example Output:
4

