This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Operative Obs, Subject name: Gynaecology & Obstetrics
The following instrument is called as? 
Select and explain. 
A. Cusco's speculum, B. Vulsellum, C. Sims Speculum, D. Vaginal Sling
C: Sims Speculum
Answer: C: Sims Speculum 
Explanation: Ans. (c) Sims speculum