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
The dose of OPV, given at birth, in case of institutional deliveries is - 
Select and explain. 
A. Zero dose OPV, B. Initial dose, C. Primary dose, D. First dose
A: Zero dose OPV
Answer: A: Zero dose OPV 
Explanation: None