This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
Simple random sampling is ideal for: 
Select and explain. 
A. Vaccinated people, B. Heterogenous population, C. Homogenous population, D. All of the above
C: Homogenous population
Answer: C: Homogenous population 
Explanation: None