input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** MHC Class II proteins are expressed by:   (A) B-cells, dendritic cells and macrophages   (B) Platelets   (C) T-cells   (D) All nucleated cells
output: ['(A) B-cells, dendritic cells and macrophages <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) B-cells, dendritic cells and macrophages  (B) Platelets  (C) T-cells  (D) All nucleated cells <> possible answers', '  MHC Class II proteins are expressed by: <> context']