Ramesh,a 62 year old male was found to have a solid renal tumor on CT scan which had invaded the renal vein and inferior vena cava.All are true except:

• A. Pre-op biopsy is not indicated
• B. IVC invasion means inoperable condition
• C. Pre-op radiotherapy or chemotherapy is not done
• D. Chest x-ray is done to rule out pulmonary metastasis