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
Polar bodies are formed during ? 
Select and explain. 
A. Spermatogenesis, B. Organogenesis, C. Oogenesis, D. Morphogenesis
C: Oogenesis
Answer: C: Oogenesis 
Explanation: The first polar body is formed at the end of meiosis I and the second polar body is formed at the end of meiosis II. Ref: An Introduction to Human Embryology for Medical Students, 7th Edition, Pages 12, 14; Anatomy and Physiology Laboratory Manual By Robe Amitrano, 7th Edition, Page 614; An Introduction to Human Disease: Pathology and Pathophysiology Correlations By Leonard V. Crowley, 8th Edition, Pages 49, 57.