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: Medicine
Sickle cell Anemia leads to resistance towards 
Select and explain. 
A. P. Falciparum, B. P. Ovale, C. P. Malariae, D. P. Vivax
A: P. Falciparum
Answer: A: P. Falciparum 
Explanation: Ans. is 'a' i.e., P. Falciparum Red cell surface antigen that offer protection against P. fakiparum Duffy blood group system ABO (H) blood group system Glycophorins Gerbich antigen Complement receptor type I Knops blood group Abnormalities of the red cell cvtoskeleton which may offer protection against Rfalciparum South-east asia ovalocytosis Hereditary elliptocytosis Hereditary spherocytosis Sickle cell HbA/S