<prompt> A 35-year-old male suffering from sudden onset of high grade fever. On malarial slide examination all stages of parasites are seen with schizonts of 20 microns size with 14-20 merozoites per cell and yellow brown pigment. The diagnosis is:Plasmodium falciparumPlasmodium vivaxPlasmodium malariaePlasmodium ovale  <response>: Ans. b Plasmodium vivax Catch clue of answer from question. In this question clue is colour of pigment which are: Black pigment : P falciparum Brown black : P malariae Dark brown : P ovate Yellow brown : P vivax 