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: Pathology
[{'content': 'The approximate number of genes contained in the human genome is - \nSelect and explain. \nA. 40,000, B. 30,000, C. 80,000, D. 1,00,000', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. is \'b\' i.e., 30,000 genes "What was totally unexpected was that human have a mere 30,000 genes rather than the 100,000 predicted only recently".', 'role': 'assistant'}]