Definition: 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: Question: Among the sources used to make the diagnosis of health of a community, it is essential to know: 
 Options:  <1> Census of the population. <2> Notifiable diseases registration. <3> Potable water supply. <4> Waiting lists. <5> All are correct.
