The following are multiple choice questions (with answers) about medical knowledge.   **Question:** The best preferred biochemical marker for MI   (A) CPK MM   (B) CPK MB   (C) CPK BB   (D) All of the above
['(B) CPK MB <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) CPK MM \n (B) CPK MB \n (C) CPK BB \n (D) All of the above <> possible answers', '  The best preferred biochemical marker for MI <> context@']