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 Q]: Question: By what legal norm were regulated for the first time the specialties for the Diploma in Nursing and obtaining the title of Specialist Nurse? 
 Options:  <1> Order June 1, 1992 (BOE June 2). <2> Royal Decree 450/2005, of April 22 (BOE May 6). <3> Royal Decree 992/1987, of July 3 (BOE 1 of August). <4> Royal Decree 943/1986 (BOE May 14). <5> Order of July 15, 1980 (BOE of July 23).
[EX A]: 3

[EX Q]: 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.
[EX A]: 4

[EX Q]: Question: In humans, Lactobacillus acidophilus is part of the normal microbiota of: 
 Options:  <1> The female genital tract <2> The bucco-pharynx. <3> The urinary tract <4> The skin. <5> The respiratory tract
[EX A]:
1