This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Surgery
[{'content': 'What is the characterstic of Poland Syndrome ? \nSelect and explain. \nA. Amastia with the absence of the Pectoralis major, B. Athelia with the absence of the Pectoralis major, C. Amastia with the absence of the Pectoralis minor, D. Athelia with the absence of the Pectoralis minor', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Poland syndrome Major characterstic :Absence of the Pectoralis major muscle Others :Absence of pectoralis minor muscle, absence of costal cailage, Hypoplasia of breast and subcutaneous tissue Hand anomalies', 'role': 'assistant'}]