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
Stereotactic Radiotherapy is used in – 
Select and explain. 
A. Miliary Lung Metastasis, B. Inoperable Stage 1 Lung Tumor, C. Lymphangitis Carcinomatosa, D. Tumor at the base of tongue with new Lymph Node enlargement
B: Inoperable Stage 1 Lung Tumor
Answer: B: Inoperable Stage 1 Lung Tumor 
Explanation: None