Which one of the following is detected by the antigen detection test used for the diagnosis of P. falciparum malaria -: (A) Circum-sporozoite protein, (B) Merozoite surface antigen, (C) Histidine-Rich-Protein I (HRP-I), (D) Histidine-Rich-Protein II (HRP-II)
Answer is D. Antigen detection tests [Rapid diagnostic tests (RDTs) or Immunochromatographic tests (ICTs)

Rapid and simple but less sensitive, costly and may give false +ve in RA factor +ve cases
pLDH and Aldolase: Common to all Plasmodium species
HRP-2 Ag detection: Specific for P.falciparum