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': 'Increase in height in first year is by \nSelect and explain. \nA. 40%, B. 50%, C. 60%, D. 75%', 'role': 'user'}, {'content': "Answer: B \nExplanation: Length at bih- 50 cms, while at the end of 1st year, it is 75 cms, i.e., height increases by 25cms, which will be 50% 50% of 50cms (at bih) will be 25cms, and by adding this 25cms to 50cms it'll account to 75 cms( at the end of 1yr) Ref: Nelson's 20th edition, pg 84-89", 'role': 'assistant'}]