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
Eighty-five percent of aggressive lymphomas exhibit which cell type? 
Select and explain. 
A. Follicular small cleaved cell lymphoma, B. Diffuse small lymphocytic lymphoma, C. Diffuse large cell lymphoma, D. Adult T -cell leukemia-lymphoma
C: Diffuse large cell lymphoma
Answer: C: Diffuse large cell lymphoma 
Explanation: In non-Hodgkin's lymphoma, the primary determinant of prognosis remains the grade of the tumor. High-grade lymphomas remain potentially curable; low- grade lymphomas are not curable, but they may have a much more indolent clinical course.