This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
All develop from endodermal cloaca except 
Select and explain. 
A. Rectum, B. Anal canal, C. Sigmoid colon, D. Primitive urogenital sinus
C: Sigmoid colon
Answer: C: Sigmoid colon 
Explanation: Sigmoid colon develop from the hindgut Ref: Gray's 39e/p-1289