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: Anatomy
Muscles forming floor of pelvis are all except? 
Select and explain. 
A. Pubococcygeus, B. Iliococcygeus, C. Ischiococcygeus, D. Iliacus
D: Iliacus
Answer: D: Iliacus 
Explanation: Ans. is'd' i.e.,Iliacus.(Ref: BDC &/eVol.llp. 425)The pelvic floor is formed by the levator ani muscle which consists of three pas:-PubococcygeusIliococcygeusIschiococcygeus