A 50 year old man has had pericardial pain for an hours.On examination, his BP is 110/80 mm Hg, pulse is 120 beats/min and respiratory rate is 26/min.His ECG shows marked S-T segment elevation in leads V3-V6 and left ventricular ectopics.The intial therapeutic modalities in the case would include -

• A. Lignocaine and streptokinase
• B. Streptokinase and morphine
• C. Morphine and dobutamine
• D. Lignocaine streptokinase and morphine