This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: parasitology, Subject name: Microbiology
A patient is diagnosed with malaria had fever periodicity of 72 hours. Organism implicated is 
Select and explain. 
A. P.falciparum, B. P.vivax, C. P.ovale, D. P.malariae
D: P.malariae
Answer: D: P.malariae 
Explanation: An attack usually stas with shivering and chills, followed by a high fever, followed by sweating and a return to normal temperature. Ref ananthnarayana and panikers microbiology textbook 8/e