A 67-year-old man has a long-standing history of stable angina. Every

time he walks up the hill at the end of his street, he develops a

squeezing pain in the centre of his chest. The pain disappears when he

sits down and rests, or when he takes his sublingual glyceryl trinitrate

spray. Below are five cross-sections of a coronary artery. Which ONE of

these best fits with the above patient?