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: Pathology
[{'content': 'Prognosis in a soft tissue tumour is determined by ? \nSelect and explain. \nA. Grade of tumour, B. Bulk of the tumour, C. Depth of Invason, D. Lymph nodal involvement', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Grade of tumor o Whatever the type, the grade of soft tissue Sarcoma is impoant for predicting its behaviour - Robbins", 'role': 'assistant'}]