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: Gynaecology & Obstetrics
The most sensitive method for detecting cervical chlamydia trachomatis infection is 
Select and explain. 
A. Direct fluorescent antibody test, B. Enzyme immunoassay, C. PCR, D. Culture on irradiated McConkey cells
C: PCR
Answer: C: PCR 
Explanation: PCR