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: Dental
After 3 days of fever patient developed maculo erythematous rash lasting for 48 hrs diagnosis is – 
Select and explain. 
A. Fifth disease, B. Rubella, C. Measles, D. Roseola infantum
D: Roseola infantum
Answer: D: Roseola infantum 
Explanation: None