In a 45-year-old man, during a medical checkup on the ECG revealed Q waves with a duration of 0.04 s and an amplitude of 1/3 of the R wave in II, III, aVF leads. ST segment was detected on baseline. The patient has no complaints; borders and melody of heart are not changed. What is your diagnostic assumption? A.Scarring changes in the posterior wall of the left ventricle B.Deviation of the electric axis of the heart to the left C.Painless form of angina pectoris D.Pulmonary embolism E.Myocardial infarction of the left wall of the left ventricle