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: Medicine
All are true about perinatal transmission of HIV Except- 
Select and explain. 
A. Cannot be diagnosed by routine confirmatory test., B. Post natal transmission is not possible., C. Infant transmission rate is <50%, D. Virus can be isolated from mother's milk
B: Post natal transmission is not possible.
Answer: B: Post natal transmission is not possible. 
Explanation: None