The correct option is A Haem of haemoglobin
Hemozoin is an iron-containing pigment, which accumulates as cytoplasmic granules in malaria parasites. It is formed from the heme part of the haemoglobin (from human RBC) that the malarial parasites ingest when they attack the RBC. The free heme part is toxic to the parasite so it converts the heme to hemozoin.
So, the correct answer is option B.