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
Vaginal cytology for hormonal change are best taken from : 
Select and explain. 
A. Posterior wall, B. Anterior wall, C. Lateral wall, D. Any wall
C: Lateral wall
Answer: C: Lateral wall 
Explanation: Lateral wall