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
Which of the following is true regarding chickenpox 
Select and explain. 
A. CNS complications are seen, B. Reye's syndrome can occur, C. Prevented by giving immunoglobulins, D. All the above
D: All the above
Answer: D: All the above 
Explanation: None