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: Social & Preventive Medicine
Dengue haemorrhagic fever is diagnosed by- 
Select and explain. 
A. Acute onset of high fever, presence of petechiae, epistaxis and platelet count > 2 lakh, B. Acute onset of high fever, positive tourniquest test, epistaxis or malena and malena and platelet count > 1.5 lakh, C. Acute onset of high fever 2 to 7 days, associated with hemorrhagic manifestation e.g. hemoptysis and platelet count less than 1.5 lakh, D. Acute onset of high fever, positive tourniquet test, bleeding gum and platelet count less than 1.0 lakh
D: Acute onset of high fever, positive tourniquet test, bleeding gum and platelet count less than 1.0 lakh
Answer: D: Acute onset of high fever, positive tourniquet test, bleeding gum and platelet count less than 1.0 lakh 
Explanation: None