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'.
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).
A:
3