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: Medicine
Which of the following statements about small cell carcinoma of lung is true? 
Select and explain. 
A. Peripheral in location, B. Chemosensitive tumor, C. Bone metastasis is uncommon, D. Paraneoplastic syndrome with fPTH is common
B: Chemosensitive tumor
Answer: B: Chemosensitive tumor 
Explanation: Small cell lung carcinoma (SCLC) accounts for 20% of primary lung cancers. It is a highly chemosensitive tumor and is primarily treated with chemotherapy and radiation regardless of the stage of presentation. Surgery is indicated for a patient with an incidentally discovered peripheral nodule that is found to be SCLC. Ref: Schwaz's Principles of Surgery, 9th Edition, Chapter 19