This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Development period- week 1,2,3,4, Subject name: Anatomy
[{'content': 'At what location does the amniotic cavity develop? \nSelect and explain. \nA. Between the cytotrophoblast and syncytiotrophoblast, B. Within the extraembryonic mesoderm, C. Between the endoderm and mesoderm, D. Within the epiblast', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The amniotic cavity develops within the epiblast, and it is a cavity that contains the embryo and amniotic fluid', 'role': 'assistant'}]