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
Cause(s) of retention of urine in reproductive age group:a) Cervical fibroidb) Retroverted gravid uterusc) Unilateral hydronephrosisd) Severe UTIe) Posterior urethral valve 
Select and explain. 
A. acd, B. bcd, C. abc, D. abd
D: abd
Answer: D: abd 
Explanation: Important gynecological causes of acute retention:—