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 international comparison, the WHO expert committee defines ‘still birth’ as birth of dead and under weight of fetus more than _____ 
Select and explain. 
A. 500, B. 2000, C. 1500, D. 1000
D: 1000
Answer: D: 1000 
Explanation: None