Rakesh Sharma,45 yrs, an alcoholic and a smoker presents with a 3 hour history of increasing shortness of breath.He started having this pain while eating,which was constant and radiated to the back and interscapular region.He was a known hypertensive.On examination,he was cold and clammy with a heart rate of 130/min, and a BP of 80/40mmHg.JVP was normal.All peripheral pulses were present and equal.Breath sounds were decreased at the left lung base and chest x-ray showed left pleural effusion.Which one of the following is the most likely diagnosis?

• A. Rupture of the esophagus.
• B. Acute pulmonary embolism.
• C. Acute aortic dissection.
• D. Acute myocardial infarction.