The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Crescendo angina is   (A) Stable angina   (B) Heart failure   (C) Unstable angina   (D) MI
['(C) Unstable angina <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Stable angina \n (B) Heart failure \n (C) Unstable angina \n (D) MI <> possible answers', '  Crescendo angina is <> context@']