This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Biostatistics, Subject name: Social & Preventive Medicine
Under the registration act of 1969, bih should be registered within - 
Select and explain. 
A. 7 days, B. 14 days, C. 21 days, D. 28 days
A: 7 days
Answer: A: 7 days 
Explanation: .