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
Baby born to mother suffering from AIDS, all are true except 
Select and explain. 
A. Failure to thrive, B. Have infections, C. 50% chances to have AIDS, D. All are true
C: 50% chances to have AIDS
Answer: C: 50% chances to have AIDS 
Explanation: None