Answer:

The correct answer is option 'B' - P. malariae.

Explanation:

Malaria is a mosquito-borne infectious disease caused by the Plasmodium parasite. There are several species of Plasmodium that can cause malaria in humans, including P. falciparum, P. malariae, P. ovale, and P. vivax. Each species has its own unique characteristics and features.

One of the characteristic features of the Plasmodium parasite is its ability to undergo a complex life cycle that involves both human and mosquito hosts. In humans, the parasite infects and multiplies within red blood cells, causing the characteristic symptoms of malaria.

Among the four species mentioned, the rosette-like arrangement of merozoites is found in P. malariae. Merozoites are the form of the parasite that infects red blood cells and causes the symptoms of malaria.

Here is a brief explanation of the other species mentioned:

- P. falciparum: This species is responsible for the most severe form of malaria and is the most common cause of malaria-related deaths. It does not form a rosette-like arrangement of merozoites.

- P. ovale: This species also does not form a rosette-like arrangement of merozoites. It is less common than P. falciparum and P. vivax.

- P. vivax: This species is the most widespread and common cause of malaria outside of sub-Saharan Africa. It does not form a rosette-like arrangement of merozoites.

In conclusion, the rosette-like arrangement of merozoites is a characteristic feature of P. malariae.