This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardio thoracic surgery  , Subject name: Surgery
The site of temporal bone metastasis is most commonly seen with: 
Select and explain. 
A. Carcinoma breast, B. Carcinoma bronchus, C. Carcinoma kidney, D. Carcinoma Prostate
B: Carcinoma bronchus
Answer: B: Carcinoma bronchus 
Explanation: Temporal Bone Metastasis: Metastatic tumours to the temporal bone are uncommon. Usually seeded by the hematogenous route MC metastatic lesion in the temporal bone: CA Breast Lung, Prostate and renal Carcinomas are well documented for their metastatic potential to the temporal bone. Ref: www.ncbi.nlm.nih.gov.v.63(Suppl 1); Jul2011