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
Meckel's diveiculum is a remnant of: 
Select and explain. 
A. Stenson's duct, B. Wolffian duct, C. Mullerian duct, D. Vitellointestinal duct
D: Vitellointestinal duct
Answer: D: Vitellointestinal duct 
Explanation: D i.e. Vitellointestinal duct- Persistence of small poion of vitelline duct or yolk stalkQ remnant is called meckel's diveiculum or ileal diveiculum.Reduction of physiological hernia occurs at 10 weeks of embryonic periodQ