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: Social & Preventive Medicine
For an epidemiological study, every 10th person is selected from a population. This type of sampling is known as 
Select and explain. 
A. Simple random sampling, B. Systematic random sampling, C. Stratified random sampling, D. Cluster random sampling
B: Systematic random sampling
Answer: B: Systematic random sampling 
Explanation: None