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: Pediatrics
Which of the following is true about roseola infantum - 
Select and explain. 
A. Defervescene follows the rash, B. Caused by HHV 6 and 7, C. Slapped check appearance is seen, D. Otitis media is common complication
B: Caused by HHV 6 and 7
Answer: B: Caused by HHV 6 and 7 
Explanation: Ans. is 'b' i.e., Caused by HHV 6 & 7