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
In uterine prolapse, decubitus ulcer in the cervix is caused by : 
Select and explain. 
A. Friction, B. Malignant change, C. Venous congestion, D. Trophic changes
C: Venous congestion
Answer: C: Venous congestion 
Explanation: Venous congestion