The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Tumor cells in chronic lymphocytic leukemia or small lymphoblastic lymphoma (CLL/SLL) arisefrom which of the following?   (A) Mature B cell   (B) Naive B cell   (C) Centrocytes of germinal center   (D) Progenitor B-cell
['(B) Naive B cell <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Mature B cell \n (B) Naive B cell \n (C) Centrocytes of germinal center \n (D) Progenitor B-cell <> possible answers', '  Tumor cells in chronic lymphocytic leukemia or small lymphoblastic lymphoma (CLL/SLL) arisefrom which of the following? <> context@']