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
[{'content': 'Formation of the Prochordal plate and the Primitive streak is seen at what age of Development? \nSelect and explain. \nA. 2 days, B. 8 days, C. 14 days, D. 16 days', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Age (in days)Developmental Events2Embryo is at two-cell stage3Morula is formed4Blastocyst is formed8Bilaminar disc is formed14Prochordal plate and primitive streak is seen16Intra-embryonic mesoderm is formed/disc is now three-layeredReference: Inderbir Singh Embryology; 10th edition; Page no: 57', 'role': 'assistant'}]