The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Immunologicaly active cells are:   (A) Plasma cells   (B) MAST cells   (C) Eosinophils   (D) R.B.C s
['(A) Plasma cells <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Plasma cells \n (B) MAST cells \n (C) Eosinophils \n (D) R.B.C s <> possible answers', '  Immunologicaly active cells are: <> context@']