This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: D.O.C, Subject name: Pharmacology
Drug of choice for acyclovir resistant herpes is? 
Select and explain. 
A. Cidofovir, B. Gancyclovir, C. Valacyclovir, D. Foscarnet
D: Foscarnet
Answer: D: Foscarnet 
Explanation: Ans. (d) FoscarnetRef KDT 6/e