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: Microbiology
Shortest incubation period in malaria - 
Select and explain. 
A. P. vivax, B. P. falciparum, C. P. malariae, D. P. ovale
B: P. falciparum
Answer: B: P. falciparum 
Explanation: None