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: Microbiology
Which of the following statement about P24 antigen of HIV is NOT true? 
Select and explain. 
A. It can be detected during the window period, B. Free P24 antigen disappears after the appearance of lgM response to it, C. Virus load parallels P24 titre, D. It remains during asymptomatic phase
D: It remains during asymptomatic phase
Answer: D: It remains during asymptomatic phase 
Explanation: None