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': 'Which of the following is aberrant epiphysis? \nSelect and explain. \nA. Coracoid process, B. Coracoid process, C. Base of 1st metacarpal, D. Base of 2nd metacarpal', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Aberrant epiphyses are deviations from the normal anatomy and are not always present. For example, the epiphysis at the head of\xa0the first metacarpal bone and at the bases of other metacarpals.', 'role': 'assistant'}]