This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thorax, Subject name: Anatomy
[{'content': 'A 50 year old chronic smoker presented with cough, hemoptysis, and unexpained weight loss. CT scan revealed a tumor in the right lung invading the mediastinal pleura. The patient is likely to experience referred pain in which of the following regions? \nSelect and explain. \nA. Side of neck, B. Anterolateral thoracic wall, C. Medial pa of arm, D. Abdominal wall', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The pain from the mediastinal pleura is referred to the side of the neck Pleura Innervation Pain referred to Costal and peripheral diaphragmatic pleura Intercostal nerves Thoracic or abdominal wall Mediastinal and central diaphragmatic pleura Phrenic nerve (C3, C4 and C5) Lateral neck region and supraclavicular region Ref: Gray&;s Anatomy 41st edition Pgno: 956', 'role': 'assistant'}]