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
The most sensitive method for detecting cervical Chlamydia trachomatis infection is - 
Select and explain. 
A. Direct fluorescent antibody test, B. Enzyme immunoassay, C. Polymerase chain reaction, D. Culture on irradiated McConkey cells
C: Polymerase chain reaction
Answer: C: Polymerase chain reaction 
Explanation: None