This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: JIPMER 2017, Subject name: Anatomy
Primitive streak develops from? 
Select and explain. 
A. Mesoderm, B. Hypoblast, C. Epiblast, D. Neural plate
C: Epiblast
Answer: C: Epiblast 
Explanation: Around day 14, the epiblast cells form primitive streak,. Notochord is formed by the mesoderm cells developed by epiblast cells.