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: Radiology
Most common site of Metastasis of Lung carcinoma 
Select and explain. 
A. Liver, B. Kidney, C. Brain, D. Adrenals
C: Brain
Answer: C: Brain 
Explanation: Brain is m/c site of metastasis of lung carcinoma.
Adrenal is m/c endocrinal site to be involved.