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 a population of ______ in plains, A female health worker is alloted 
Select and explain. 
A. 1000, B. 2000, C. 5000, D. 7000
C: 5000
Answer: C: 5000 
Explanation: Female health worker is alloted at subcenter level.
Subcenter in plains is for 5000 population.
Subcenter in hilly/tribal areas is for 3000 population.