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
Ectopic ACTH syndrome is seen most commonly with- 
Select and explain. 
A. Renal cell carcinoma, B. Lymphoma, C. Bronchogenic carcinoma, D. Pituitary adenoma
C: Bronchogenic carcinoma
Answer: C: Bronchogenic carcinoma 
Explanation: None