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'.

Input: Consider Input: Question: Which of the following medications is an anti CD20 monoclonal antibody used in the treatment of rheumatoid arthritis? 
 Options:  <1> Alemtuzumab <2> Muromunab. <3> Abalizumab <4> Rituximab <5> Visilizumab.

Output: 4


Input: Consider Input: Question: A tablet with gastrosoluble film cover is being designed. Which of the following excipients exerts the function of plasticizer in said cover ?: 
 Options:  <1> Hydroxypropylmethylcellulose. <2> Methylcellulose <3> Copolymer of methacrylic acid (Eudragit® E30D (A)) <4> Polyethylene glycol <5> Titanium oxide.

Output: 4


Input: Consider Input: Question: Which of the following is a poor prognostic factor in acute lymphoblastic leukemia ?: 
 Options:  <1> Age 1-9 years. <2> Phenotype B. <3> Karyotype with translocation 9; 22. <4> Leucocytosis of 25,000 / microL. <5> Hyperploid DNA index.


Output: 3