A Municipal Health Officer (MHO) who actively supports the CDD Program of the government expressed concern over the quality of care delivered by health care providers in his municipality. To evaluate the quality of care, the MHO decides to conduct a survey among the residents. Which of the following methods would be most appropriate for the MHO to use in conducting the survey?
1) Random sampling
2) Convenience sampling
3) Stratified sampling
4) Cluster sampling