This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
All are true regarding CMV except - 
Select and explain. 
A. Double stranded DNA virus, B. Rarely causes problems in immunocompetent person, C. Foscarnet can eliminate CMV, D. Tretinitis rare when CD4 count >200/mm3
C: Foscarnet can eliminate CMV
Answer: C: Foscarnet can eliminate CMV 
Explanation: Acyclovir is useful in prophylaxis but not in treatment. Ganciclovir and foscarnet have been found to be effective and are used in patients with AIDS. REF:ANANTHANARAYAN AND PANIKER'S TEXTBOOK OF MICROBIOLOGY 9TH EDITION PAGE NO:474