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
Endocervical sampling is recommended during colposcopy in the following situation 
Select and explain. 
A. Initial evaluation of LSIL in pregnant female, B. Surveillance 4 to 6 months after excisional therapy if specimen margins are positive for HSIL, C. Along with co-testing in post-menopausal LSIL, D. Reassure LSIL patients in age group of 25 to 30 years.
B: Surveillance 4 to 6 months after excisional therapy if specimen margins are positive for HSIL
Answer: B: Surveillance 4 to 6 months after excisional therapy if specimen margins are positive for HSIL 
Explanation: Recommendations for Endocervical sampling:

Colposcopy in inadequate, or colposcopy is adequate but no lesion is identified. Endocervical sampling is acceptable in other cases at provider discretion.
Initial evaluation of ASC - H, HSIL, AGC, or AIS cytology test results.
Surveillance 4 to 6 months after excisional therapy if specimen margins are positive of HSIL.
Surveillance after conization for AIS has been performed in women wishing fertility preservation. Negative endocervical curettage results add reassurance to this management.