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: Microbiology
Rapid diagnostic test for P. falciparum ustilizes which enzyme ? 
Select and explain. 
A. HRP-2, B. SGOT, C. LDH, D. Peroxidase
C: LDH
Answer: C: LDH 
Explanation: Ans. is 'c' i.e., LDH Among the given options two are used in rapid diagnostic tests :HRF-2LDH Among these LDH is an enzyme while HRP-2 is a simple protein antigen.