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': 'Both hyperplasia and hyperophy are seen in \nSelect and explain. \nA. Breast enlargement during lactation, B. Uterus during pregnancy, C. Skeletal muscle enlargement during exercise, D. Left ventricular hyperophy during hea failure', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ref,Robbins 9/e p36 The massive physiological growth of the uterus during pregnancy is a good example of hormone induced increase in size of an organ that results from both hyperophy and hyperplasia', 'role': 'assistant'}]