This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ovarian Tumors and Vulvar cancer, Subject name: Gynaecology & Obstetrics
A Patient presents with abdominal discomfo, bloating and pain. On an MRI bilateral ovarian tumors with involvement of pelvic lymph node and liver capsule are seen.What is the appropriate staging of this ovarian tumor ? 
Select and explain. 
A. Stage 1, B. Stage 2A, C. Stage 2B, D. Stage 3
D: Stage 3
Answer: D: Stage 3 
Explanation: Stage 3 : one or bilateral ovarian tumor + cytologically or histologically confirmed spread to peritoneum outside pelvis (liver or spleen capsular involvement) and/or retroperitoneal lymph node involvement NOTE: involvement of liver/spleen parenchyma is stage IV