The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 50 year old tall thin smoker presents with dyspnoea and palpitations. ECG was done. Diagnosis:   (A) Atrial fibrillation   (B) Multifocal atrial tachycardia   (C) AV nodal re-entrant tachycardia   (D) Monomorphic VT
['(B) Multifocal atrial tachycardia <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Atrial fibrillation \n (B) Multifocal atrial tachycardia \n (C) AV nodal re-entrant tachycardia \n (D) Monomorphic VT <> possible answers', '  A 50 year old tall thin smoker presents with dyspnoea and palpitations. ECG was done. Diagnosis: <> context@']