This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infections of the genital tract, Subject name: Gynaecology & Obstetrics
True statement about female genital tuberculosis : 
Select and explain. 
A. Genital tract involvement results only from lymphatic spread, B. Postmenstrual histopathological examination is diagnostic, C. Polymerase chain reaction (PCR) techniques have got higher sensitivity in detection, D. Reproductive outcome following antituberculous chemotherapy is satisfactory
C: Polymerase chain reaction (PCR) techniques have got higher sensitivity in detection
Answer: C: Polymerase chain reaction (PCR) techniques have got higher sensitivity in detection 
Explanation: Modes of spread: hematogeneous,lymphatic,ascending Diagnostic uterine curettage done during the week preceding menstruation. Histology detects TB in 10% cases only following chemotherapy pregnancy is rare(5-10%) ,and if occurs ectopic is more D.C.DUTTA'S TEXTBOOK OF GYNAECOLOGY,Pg no:143,6th edition