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
[{'content': 'The right costo-phrenic line extends up to the level of which rib in the mid-axillary line - \nSelect and explain. \nA. 6th, B. 10th, C. 8th, D. 12th', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The inferior margin of pleura extends onto diaphragm at the level of (Costodiaphragmatic line)\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 8th rib in the midclavicular line\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 10th rib in mid-axillary line\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 12th rib at the lateral border of erector spinae.\nThe lower border of lungs extends till the level of\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 6th rib in the midclavicular line\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 8th rib in mid-axillary line\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 10th rib at the lateral border of erector spinae.', 'role': 'assistant'}]